Translation Journal
Caught in the Web

Web Surfing for Fun and Profit


by Cathy Flick, Ph.D.
Kirill Sereda found this collection of dictionaries: "Glossarissimo! Monolingual & multilingual resources & terminology for translators & interpreters." The Filter button can be used to limit the search to one language.
The first url is from Kirill Sereda: the Centre National de Ressources Textuelles et Lexicales (CNRTL). Includes links to French-only and French > < Portuguese online dictionaries. The second url comes from Yves Lanthier, who says he uses it daily, and that "a search bar can be installed in Firefox, an icon with pop search window in Chrome."
The is growing, due to user contributions, to include more language combinations, and also includes a forum plus handy links to other language resources for searched words. Currently includes DE, EN, IS, IT, RU, HU, RO, FR, PT, SV, LA, NL, ES, BG, SK, CS, TR, HR, PL, NO, DA, EL.
Jon Culshaw told us about this Carpentry and Joinery Glossary at their "Gate Expectations" site.
Katy Schmeltzer passed this astrology glossary along while working with ASTROSource. Quite detailed, actually, if you ever run into anything in this area.
Links to Russian dictionaries.
Kirill Sereda found these online visual dictionaries. Visuwords online graphical dictionary: "It's a dictionary! It's a thesaurus! Look up words to find their meanings and associations with other words and concepts. Produce diagrams reminiscent of a neural net. Learn how words associate." And yes, it's very visual and rather pretty. You can also play bouncy ball with it using your mouse. Lexipedia is a similar concept (smaller bouncy balls, apparently).
Bonnie at Caron Treatment Centers (drug/alcohol rehab) suggested this glossary they compiled of "teen slang typically used to describe various illegal substance and drug activities." (English)
Russian-English dictionary--in addition to translations of words, provides lists of phrases where your term appears. Searchable in both directions. I've found it quite helpful for technical work as well as ordinary language.
Carolyn Perkes found this collection of dictionaries, including the Icelandic dictionary linked above. Multilingual.
Asia Rolewicz at reminds us of the interactive language portal which includes many bilingual dictionaries. You can also suggest your own translations. Includes sample sentences, which I've found helpful myself.
Kirill Sereda suggests this online Chinese-English dictionary: "This is a very nice site that can be used when you see a completely unknown character with a problematic radical. I've just nailed down one pesky character simply by drawing it by hand and selecting the correct version from a list! Also, the Character Detail section contains additional information on Japanese and Korean pronunciations (and my character was actually Japanese). The Character Etymology and Stroke Order sections (with animation) are also excellent."
Browse through the collection of subject-specific glossaries.
Susan Siewert found this searchable multilingual Bible: "Just enter a word or phrase in the search dialogue and it will find the Bible verse(s) containing the word or phrase. Then click on the link to get the verse in different languages and various Bible versions."
Paul Frank says to try out Google's new dictionaries, "including a pretty good Chinese dictionary."
The Canadian government's French-English-Spanish database is now open to everybody for free! Choose your interface language, then select Launch Termium Plus on left-hand sidebar.
Sonia Murray found this eclectic collection of annotated links to "Jargon, slang, and niche vocabularies." Worth browsing through even if you think you'll never need it...
"MyMemory is the world's largest Translation Memory: 300m segments by end 2009...Anyone may consult or contribute to MyMemory via the internet, although contributions are carefully vetted for quality." (multilingual)
Gudmund Areskoug found this "treasure trove" of Swedish language resources online. General and specialized dictionaries and much more.;jsessionid=CA9D4B87E9AAAB6F7FD0E02351A7954A
Susan Larsson adds this terminology resource for Swedish.
Tim Barton admits to being Swedish-challenged, but "accidentally stumbled upon" this simple general Swedish-English dictionary. Might be useful for people learning Swedish or needing to occasionally decipher a little Swedish.
Nice glossary with cultural notes for navigating the perilous seas of the German educational system at all levels. (German, English)
Searchable lexicon of German abbreviations.
OCR version of the "Tolkovyi Slovar' Russkogo Yazyka" by Ozhegov and Shvedova. Helpful all-Russian dictionary with Russian explanations of words. Browsable and searchable. I found technical terms as well as more general ones.

Paul Gallagher found these links for searchable lists of acronyms in various languages:
"World's largest and most comprehensive dictionary of acronyms, abbreviations, and initialisms. Combined with the Acronym Attic, Acronym Finder contains more than 4 million acronyms and abbreviations." Even can search for US and Canadian postal codes.
Multilingual: Mostly English, with some Spanish, French, Dutch, Italian, Portuguese.
French acronyms.
Ukrainian acronyms.
Hungarian acronyms.
Czech acronyms.
Yves Lanthier says "here is another resource for acronyms, multilingual, multidomain." He advises patience, though: "Click somewhere besides links in the left half of the screen to be sure it's active, then search a string such as [acron]."
Mijnwoordenboek is a free translation dictionary where you can translate words to and from English, German, Spanish, French and Dutch. In addition to the translations you can also conjugate verbs, check your spelling, find synonyms and find rhyme words.
Lori Cirefice suggests this searchable site for scientific terminology. (English, French, Spanish, and German)
Billy O'Shea found this resource: European Union TMs for free download. "The Directorate-General for Translation of the European Commission opened up to public access aligned sentences ('translation units') extracted from one of its large shared translation memories in Euramis (European Advanced Multilingual Information System)." 22 languages.
Matthew Schlecht says this site lets you find full text expressions for English abbreviations, and also abbreviations for words or phrases. Also defines words. Allegedly does Spanish, French, Russian, Italian, Latin, German, Turkish, and Hebrew also.
German Abbreviations with English meanings.
Thanks to Howard Scott for pointing this one out: "Woxicon, the Online Dictionary. Translation of words and word sequences." Will search all the different language dictionaries at once for equivalents and synonyms. The Woxi "has developed into a comprehensive portal containing translations, synonyms, verb forms, and much more. ... One of the largest synonym dictionaries for German, English, Spanish, French, Italian, Portuguese, Dutch, and Swedish... The Verb Encyclopedia (English, Spanish, French, Italian, Portuguese, Dutch and Swedish) provides a complete conjugation of verbs, inflection forms, and up to 20 conjugated tenses." Click on the links to get the Woxi in German, English, French, Spanish, Italian, Dutch, and Swedish.
The first link has information on several Ukrainian language resources and keyboards. The second link is for a handy Ukrainian-English online dictionary with a virtual keyboard (click on keys and copy into search box; seems to work for me even without the right encoding, although I have Russian keyboards and fonts installed). Will also bring up close matches and other grammatical forms.
United Nations Multilingual Terminology Database. 70,000 Entries in 6 official languages (English, French, Spanish, Russian, Chinese, and Arabic.).
Many different multilingual glossaries relevant to the work of the United Nations.
Paul Gallagher found these "Topical collections of vocabulary with explanatory notes, generally assumes British English... Includes lots of material you will only find with difficulty in dictionaries, if at all."
Kirill Sereda found this "search engine for Taiwanese technical terminology. Extremely useful. Developed by the National Institute for

Compilation and Translation of Taiwan... does not seem to accept multi-word terms (e.g. "digital camera"), you can still search for such terms by entering each of the constituent words in its own search box (there are three of them)."
Tam McTurk points to information about a resource for the Scots language: "The Dictionary of the Scots Language (DSL) comprises electronic editions of the two major historical dictionaries of the Scots language: the 12-volume Dictionary of the Older Scottish Tongue (DOST) and the 10-volume Scottish National Dictionary (SND). DOST contains information about Scots words in use from the twelfth to the end of the seventeenth centuries (Older Scots); and SND contains information about Scots words in use from 1700 to the 1970s (modern Scots)."
Paul Gallagher found this downloadable multilingual resource for United National acronyms. "No equivalencies shown -- look up the acronym as received in order to expand it, then search for fragments of your candidate target language terms in case they're listed."
Billy O'Shea says: "Ever wondered what a willeyer does? Or a qwylwryghte? Does a shoe finder really find shoes? How do you become a quarrel picker? Find the answers here."
Paul Gallagher found this huge list of glossary links.
Paul Makinen found this Bulgarian-English-French legal glossary.
Paul Makinen says: "Very well done YU-nostalgia site. Great source for terms from everyday life in the former Yugoslavia during the Communist era."
Alexandra Scott reports: I finally got around to checking out the visual thesaurus ... and really like using it." The site says: "The Visual Thesaurus is an interactive dictionary and thesaurus which creates word maps that blossom with meanings and branch to related words... Say you have a meaning in mind, like "happy." The VT helps you find related words, from "cheerful" to "euphoric. The best part is the VT works like your brain, not a paper-bound book."
Paul Frank alerted us to this helpful BBC guide to British slang for foreigners addicted to Britcoms: BBCAmerica's British-American Dictionary. I've always said that I needed subtitles; this is almost as good.
Billy O'Shea says this English-to-American dictionary is "a great guide to British English for Americans." Plenty of explanatory detail. On the "Insults" page, after the umpteenth entry translated as "idiot": "You could almost decide having read this dictionary that any unknown British word is most likely to mean "idiot". And you could almost be right."
Paul Gallagher found this downloadable technical German-English dictionary from Degussa Construction Chemicals: "Two-column table, 971 pages in 2.3 MB, no intro or other explanation. 52 entries per page..."
Billy O'Shea's list of links to resources useful for translators working with Scandinavian languages.

Mirella Soffio suggests the following three Italian/English/French dictionaries online:
English>Italian and Italian>English.
Italian only.
Robert Paquin recommends this Dictionnaire des Collocations (which verbs go with which nouns...). In French, including more than 24 900 collocations.
Amy Bryant found this interesting long list (from Steven Baum) of online dictionaries, glossaries, and encyclopedias - many in English on a variety of subjects and some bilingual or multilingual. Well worth browsing to catch items of special interest for your own list of links. Quite diverse... you might find anything from dog breeder info to specialized and general technical material to music glossaries to slang dictionaries etc.
Neologisms A-Z: Thanks to Franc Smrke for this one. How can you live another day without knowing this: An affpuddle is "a puddle which is hidden under a pivoted paving stone. You only know it's there when you step on the paving stone and the puddle shoots up your leg." Zlander means "to talk badly or disrespectfully about someone during sleep".
Michael Burns found this very nice site with "Bicycle parts well illustrated along with a fair number of associated items." Names of parts given in Portuguese, French, Spanish, and English.
Mirella Soffio says this site is "a must for the professional procrastinator". You know who you are ..."A list of obscure words brought to you by Forthright's Phrontistery." Do you know what an abactor is?
Paul Frank suggests this "big online German-English-German dictionary." Also downloadable.
Karin Zimmer provides these dictionaries useful for work dealing with a jug of wine and a loaf of bread. (You will have to provide the Thou yourself.)
Margaret Schroeder found this multilingual "online dictionary of nearly everything... Another nice feature of this dictionary is that it includes lots of phrases as well as individual words". I've run into it accidentally on occasion during bilingual google searches, but Margaret says it can be unaccidentally accessed on google by entering this into the search box: [word] site:
Michael Molin found this sports dictionary.
Michelle Asselin stumbled upon this one: a travel industry dictionary.
Margaret Schroeder says this Reverse Dictionary is "for anyone who writes in English...You can use it like a thesaurus, entering a single word. Or for those tip-of-the-tongue moments, a whole phrase. Another technique is when I have two overlapping words, but the one I want (and can't think of) is in the intersection of the two."
Michal Molin posted this on Lantra: "Cliché has amassed a list of over 2100 clichés..." And of course fellow lantran Michael Burns chimed in "Well, I looked at it, and it didn't seem very original." Actually has explanations, so you can claim you're working.
Useful site with details about words, explanations and origins (found it when looking for info on "probiotic")..
Multilingual dictionaries, very useful. Search is fast and smooth. Spanish><English, Italian><English, French><English, German><English, plus has the Collins English dictionary. Also has instructions for installing in Netscape or Internet Explorer to look up words on web pages if you're afflicted with Windows.
Suzanne Bernard found this watercolor glossary.
The HyperDictionary. Michelle Asselin "found this while looking for an unusual word."
Iwan Davies found this site: UNTERM, the UN's six-language database.
Oana Popescu points out Wayne Magnuson's English Idioms: Sayings and Slang site. "English Idioms with meaning and examples, indexed alphabetically by section, containing a specific word or explained by a specific word." Wayne says he's also for hire to "jazz up your English."
Miguel Gonzalez Cort suggests we check out his site for links to Spanish and English dictionaries and other references.
Howard Scott found this "little dictionary of Argentine slang." Has quite extensive explanations in English. Worth a look even if you have no earthly use for it...
Michael Molin found this slang site interesting. How can you resist a site with "Slang of the Day" (illustrated! hear it pronounced!) and "Slang Cards" to send to your friends? Also BizIdioms.
Paul Frank says "The DICCIONARI DE LA LLENGUA CATALANA is available online (via telnet). The instructions are complicated, but if you follow them you can use the dictionary."
Paul Frank also suggests looking at the whole "interesting site with lots of links" from the Institut d'Estudis Catalans.
German abbreviations (pdf file).
Altea Ariano points out this collection of French glossaries.
Terminology Collection: links to both general and special language glossaries.
From Sue Horn: Dictionary of UK Slang. A must-have companion for Americans addicted to British tv shows.
Also from Sue Horn: "The British National Corpus (BNC) is a 100 million word corpus of British English, both spoken and written."
From Sue Horn: CBOLD: Comparative Bantu Online Dictionary. "CBOLD is a collection of lexical databases covering over 260 Bantu languages."
Sue Horn found this site: "The Glossarist is a comprehensive directory of thousands of glossaries available on the WWW. The directory may be searched by keyword or browsed in more than 130 categories. Offers access to vocabularies for a wide range of topics at various levels of specificity."
From Scott Sadowsky: a sign language dictionary. Also various interesting articles, such as about signing with and by babies long before they are able to speak. (Parents report a precipitous decline in crying and whining as a result...)
Also from Scott Sadowsky: Dictionary of Gestures, Signs and Body Language Clues.
Steven Geller says: "Anyone who has not yet discovered the dictionary URLs of the Swiss Federal Chancellery will find this site breathtakingly magnificent."
The McGraw-Hill Dictionary of Scientific and Technical Terms online! No more breaking your back trying to lift the hardcopy! Searchable and browsable.
Paul Gallagher suggests this site for Russian dictionaries and encyclopedias online. He says it includes Sovremennaya entsiklopediya, Tolkovyy slovar' Dalya, Bol'shoy entsiklopedicheskiy slovar', Finansovyy slovar', Ekonomicheskiy slovar', Anglo-russkiy slovar' finansovykh terminov, Slovar' depozitarnykh terminov, and Istoricheskiy slovar'. Paul adds: "Fair warning -- this is a rather slow site, not excruciatingly so.">
Wadi Bounouar says this is a "great [bilingual] dictionary page."
For the Uruguayan flavor of Spanish: "1000 palabras del español del Uruguay". Sue Horn saw this mentioned on MedTrad.

Spanish-English and English-Spanish on-line dictionary.
Dan Laruelle says: "For translators working in/with French, numerous interesting free online ressources are listed."
Dan Laruelle points out this free online French language dictionary, Le Trésor de la Langue Française Informatisé. A tip for mac'ers: "Works better on PC because of heavy Javascripting, so run your Softwindows or Virtual PC if you have one."
Paul Gallagher found this list of 41 renamed cities in the Commonwealth of Independent States (CIS) (in Russian).
Paul Frank passes on this pointer to A Glossary of Yiddish Words and Phrases.
Sergio Tellaroli suggests this Portuguese Dicionário Universal Língua Portuguesa.
"xrefer is the web's reference engine, a unique service providing free access to the world's largest collection of encyclopedias, dictionaries, thesauri and quotations."
Hachette Encyclopedia, in French. Joanna Sheldon says "Every word in the text is clickable."
Alicia Gordon passes along this link to latest American Heritage Dictionary of the English Language. "Over 90,000 entries feature 10,000 new words and senses, 70,000 audio word pronunciations, 900 full-page color illustrations, language notes and word-root appendixes."
Paul Frank points out this wonderful searchable and browsable online scientific dictionary. "Harcourt and Academic Press are proud to bring the largest scientific dictionary ever compiled in the English language to the Web. Search from over 130,000 terms defined in 130 fields of science."
Michael Roehrig says to click on "Glossar" to get to "a short glossary of standardization acronyms."
Kirk McElhearn points out this "glossary of truck terms."

Here’s a nice Liquid Chromatography Glossary:

If you can’t afford the CD-ROM version of the latest McGraw-Hill Encyclopedia of Science and Technology (Eighth Edition), you can console yourself with this list of searchable titles of articles:

Here’s a good ultrasonic nondestructive testing encyclopedia (more detailed than usual, including some diagrams), with index in both German and English:

A very nice searchable dictionary that covers anything remotely connected with semiconductor manufacturing industry (that’s a lot of territory!) is at

Here is a site with online searchable radar/remote sensing glossaries/acronym lists in French and English:

Here is an excellent Russian-English computer dictionary, the searchable online version (thanks to Yury Avrutin) of the hardcopy English-Russian IBM PC User’s Dictionary by Druker, Druker & Sobotsinsky:

“Encyclopedia“ on the web usually means just an encyclopedic dictionary, with some exceptions.Here is the Paper Encyclopedia, a compendium of information about paper, papermaking, and, well, general stuff about paper
“As the title suggests, a glossary on firearms and ammunition. (I included a more limited glossary in my talk at the ’95 ATA meeting.)”—DD
“The first one appears to be the electronic version of ’Janes Defence Glossary‘. The second offers a downloadable glossary.”—DD
According to the site, the downloadable glossary MEGATERMS is “a Windows based, WinHelp file containing an extensive list of terms and acronyms used by various military units, and nations. It currently contains over22,700 terms and acronyms.”
“This offers an illustrated glossary of tools—more home and workshop tools than industrial ones. If you have the name of the tool, you can find a description and perhaps a picture. I’m still waiting for the inverse: I know what it looks like and need a name.”—DD
  Me, too, Denzel! In grad school, I was well known for calling too many such items a “thingie” ....
This is a site where you can search for the expansions of acronyms OR the acronym for which you know a word in the expansion. You also can submit new acronyms or submit queries about puzzling ones, although Denzel says not to expect any speedy responses to queries.
Robin Stocks recommends this “large collection of links to online technical glossaries, both monolingual and multilingual, and definitely worth a couple of hours’ browsing.”
St. Jude Medical maintains this very useful Pacing Glossary intended for cardiac rhythm management. I found it useful when translating material on electrocardiograms. It includes tracings of ECGs, drawings of devices, and clear definitions.
This is a nice optics glossary with loads of links to more information.
“As the title suggests, a glossary on firearms and ammunition. (I included a more limited glossary in my talk at the ’95 ATA meeting.)”—DD
Dictionary of Mining, Mineral, and Related Terms (over 28,000 terms), taken from U.S. Bureau of Mines Dictionary of Mining, Mineral, and Related Terms, published on CD-ROM in 1996. Excellent search capability - will bring up all definitions including the search word.
An Interactive Guide to Strain Gage Technology. It has a nice glossary of terms, among other things.
Nautical terms dictionary (Italian-English) edited by Paolo Ciraci.
Flexible Polyurethane Foam Glossary.

All the rest are from Susan Rials (SR):
EURODICAUTOM. “Searchable terminology database; many languages, many subjects.”—SR
LOGOS dictionary. “Searchable database prepared by a translation company called Logos; not definitive, but useful in confirming terminology in context.”—SR
Microsoft glossaries. “Downloadable bilingual glossaries for all localized Microsoft projects, by language.”—SR
Multilingual Glossary of Medical Terms. “Nine languages; provides translations and definitions”—SR
ITU (International Telecommunications Union) Database. “4-language telecom terminology—English, French, Spanish and Russian—very useful.”—SR
World Health Organization computer-assisted translation resources. “Glossaries, databases, other links”—SR

Vickie Dimitriadou passes on the next four useful URL’s for glossaries and dictionaries:
This is a very interesting collection of specialized glossaries/dictionaries.
This is an excellent, very detailed glossary of pharmacology terms; more like a mini-encyclopedia.
The Complete Glossary of Insurance Coverage Explanations.
These multilingual dictionaries are searchable.

Here are more glossaries, something for everybody:
A helpful German-English technical glossary.
Dictionary of Metal Terminology. Nice searchable collection, not just the “easy” terms.
Water Words Dictionary: A Compilation of Technical Water, Water Quality, Environmental, and Water-Related Terms
Glossary of Oceanography and the Related Geosciences with References. The site says: “This is a glossary of terms and concepts used in oceanography and related fields. These fields include but are not limited to oceanography, paleoceanography, meteorology, climatology, geology, numerical analysis, signal processing and statistics.” Includes links to other places on the web. Quite extensive.
Environmental Dictionary.
The On-line Medical Dictionary. “OMD is a searchable dictionary created by Dr Graham Dark and contains terms relating to biochemistry, cell biology, chemistry, medicine, molecular biology, physics, plant biology, radiobiology, science and technology. It includes: acronyms, jargon, theory, conventions, standards, institutions, projects, eponyms, history, in fact anything to do with medicine or science.”
Joist and Structural Glossary (from Hancock Joist). Very nice.
Another good glossary, all about trusses.
A useful glossary for materials science from Brush Wellman, an “international supplier and producer of high performance engineered materials”.

Fernando Lamigueiro-Ramírez passed along this helpful link to a glossary for biologists and paleontologists.
The Principal Metals Glossary currently contains more than 1000 metallurgical terms.
Chris Hughes, a Web designer, says “ is all about net terminology, net history, cyberculture an all things online. This site gets my highest rating.”—CH, WebToday
Brian Holton points out the interesting Plumb Design Visual Thesaurus. “Enter a word and related words appear in a web whose strands you can follow, allowing a sort of stream-of-consciousness experience.”—CH, WebToday
“Through OneLook you can submit your query to over 200 dictionaries, thesauri, glossaries, and FAQ’s all from a simple and easy to use form.”—CH, WebToday
“A Web of On-Line Dictionaries (some more useful than others).”—Brian Holton “Guide to online dictionaries: very good.”—Brian Holton
“Huge list of online glossaries, dictionaries, etc.”—Brian Holton
“Oxford English Dictionary (2nd edition): the biggest and best; searchable.”—Brian Holton
“Brewer’s Dictionary of Phrase and Fable: standard reference; searchable.”—Brian Holton
“Wordbot: robot assistant for finding definitions, synonyms, etc.”—Brian Holton
“Glossary of computer-related abbreviations, etc.”—Brian Holton
“Online dictionaries; mainly bilingual”—Brian Holton
Good Radiation Glossary (particularly useful for health physics).
Accelerator Glossary. One intriguing entry of interest to recyclers and birders: “Capacitor Bank : A group of capacitors located in the ‘capacitor tree’ outside the Master Substation. These capacitors were used to store energy allowing the Main Ring magnets to ramp at 500 GeV without causing a brown out on the local power grid. Since the Main Ring now only ramps to 150 Gev during collider operation the capacitor tree is no longer used and has been converted into a High Rise apartment complex for migratory birds."
Very nice glossary about art products (I stumbled across it while looking for a good definition of covering power and related concepts for paint used as an anticorrosion coating...). More useful info and links at the homepage
This has a nice collection of recommended French terms (also non-recommended terms...) and an English-French glossary for genetic engineering.
Standard Terminology of Microscopy. This is a compilation of glossaries from several sources. Excellent detail.
Hydrogeology glossary. If you click on the number link next to the term, it takes you to the full entry, giving the Polish definition and more English, French, German synonyms.
North American Lakes Management Society has a nice Lake and Water Word Glossary.
This page on Hydraulics and Hydrology Vocabulary has links to a glossary, a list of acronyms and abbreviations, a list of programs and models, and info on converting units.
Nice explanatory list of MEASUREMENT UNITS FOR NONDESTRUCTIVE TESTING (SI units) from the NDT Handbook, Vol. 10.
These are the 5,000+ terms & phrases defined in Health Care Terms, Third Comprehensive Edition, published by Tringa Press.
“A useful glossary on explosives, projectiles, ballistics etc...It has a wide variety of terms with explanations.”—Tom Hannon
Roche Lexikon Medizin Version 3.5. Nice detail in German. “It is excellent, though the CD is better.”—David Bean
Denzel Dyer suggests this small online glass glossary.
Focuses on AIDS.
“Bonnes Pratiques Chimiques.”
WHO Technical Terminology Service. Many links for Health-related Terminology in Cyberspace.

Alan Tolerton suggested the above links in response to a plea for French-English online medical dictionaries—these are mainly all in French, but with extensive definitions.
Meteorological glossary. Can also be downloaded in Adobe Acrobat format.
Valve glossary.
Looks like a Japanese-English glossary for nuclear reactor terms.
Glossary of optical and photoinstrumentation terms and definitions. Can also be downloaded in Adobe Acrobat format.
Glossary on Emissions of Greenhouse Gases.
The Laundry Dictionary. All you ever wanted to know about the chemistry, physics, and engineering of getting stuff clean.
Definitions of Commonly Used Terms Used in Heating, Sensing and Controlling.
Glossary of Energy Terms.
Bureau of Reclamation’s Glossary of Terms.
Merriam-Webster online.“The main feature is a searchable front end to the latest edition of the Webster’s dictionary.... In addition to the dictionary there’s a slew of great features including word games, language essays, sections on new and cool words and a word of the day page.”—CH/WebToday
A Portuguese flight simulator glossary, thanks to Margarete Marchetti.
A Portugues wine glossary passed along by Margarete Marchetti.
Video & Networking Dictionary of Technical Terms.
Glossary of Medical Terms in seven languages (Danish, Dutch, English, French, German, Italian, Portuguese, and Spanish) with English definitions.
Glossary for the Department of Energy (DOE) Radiological Control Manual.
Texas Environmental Center’s Glossary of Water Terms. Very good explanations and distinctions.
Glossary of Landform and Geologic Terms. Indicates range of acceptability of various terms and also compares terms.
Everything you ever wanted to know about boilers. Nice detailed glossary. Also check out other interesting stuff while you’re there, such as their page on Boiler Emissions.
Glossary of Printing Terms.
Glossary of Locomotive Terms. (English) (German)
“The Centre for European Legal Language (University of Trier, Germany) has published a glossary on state-church relations, containing several thousand entries in German, English, French and Latin.”—Christian Meyn
Glossary of French Housing and Building Terms (French-English).
Glossary of French Legal Terms (French-English).
Nice glossary for metrology.
Glossary of Pump and Seal Terms.
Aluminum extrusion terms.
Glossary of rubber terms.
Check out Mike Farrell's site for some useful links to monolingual and bilingual tools especially for Italian/English translators.
Gabe Bokor pointed out this German-only glossary of insurance terms.
Frank Dietz offers this page of glossary links. “Recent additions include insulator terms, an olive oil glossary, Lexikon der Konferenztechnik.”
Juergen Hofmann pointed out this useful glossary for pharmacokinetics. Gives German and English equivalents with explanations in German.
Greek technical glossary (searchable).
Spanish-English commercial glossary.
Italian-English Phrase Book for Anesthesia.
Neuroanatomy glossary.
Immune and Nervous System glossary.
Glossary of Earthquake Terms.
Soil glossary.
Glossary of Terms for Arms Control and Disarmament.
Glossary of weather terms frequently used by the National Weather Service.
Compressed Air glossary.
Glossary of Label Terms.
Terms and Definitions Used in Automatic Data Capture.
Image Processing glossary.
Two German-English glossaries for all you stamp collectors.
Italian-English Occupational Safety and Health glossary.
Glossary of Reproductive Medicine & Endocrinology.
Organic Soil Conditioning Glossary.
LEO English/German Dictionary. Well worth a look, since it includes words too new for the dictionaries. You can contribute words or leave queries as well.
German-English searchable glossary for the paper industry.
Borders' Dictionary of Health Physics. Good explanations, including for instrumentation electronics.
Maria Teresa Cattaneo pointed out this technical terminology database (Italian, German, English, and French), with definitions in Italian. (English version) (Italian version)
Digital Photography glossary, from Rosella Margaroli Kikuchi.
John Byrum ( suggested this site of useful info on corrosion control and failure analysis.
John Byrum also suggests this site for technical info on metals.
Jorge Avila Kuhn suggests this site for technical and nontechnical glossaries and dictionaries.
Gabe Bokor suggests this Portuguese-English financial glossary.
Rosemary Nordström says, "They bill themselves as the largest index of on-line dictionaries on the web, with about 800 of them in a wide variety of languages."
Peter's Translation Links. Peter Spitz provides this huge list of language links.
Andrew Cain found this "useful site [for Russian-English online dictionaries], which is a collection of links to a range of about 40 other dictionaries, general, technical, abbreviations, etc." Mac people might need to copy and paste into a Word document, then change to a standard Cyrillic font to read most of the links, however.
Ferd Lazarus points out this online encyclopedia.
Detailed explanations of technical terms related to photography.
Glossary of Precious Metals Terms.
Glossary for casting terms.
Glossary of Foundry Terms.
Powder Metallurgy glossary.
A variety of links for Russian, English, and Indian languages.
Instrumental analysis glossary.
German-English railway glossary.
Radiotherapy glossary.
Strain Gage Glossary.
Suz Falcone suggests this glossary of English and French air traffic acronym (the first link). Check out the second link for a list of other French aviation resources.
Mike Garner suggests this small but useful French legal glossary.
Gabe Bokor suggests this machine safety glossary.
Michael Osmann suggests this link for a German-English chemistry dictionary (Beilstein).
Mario Cesar says this site contains several Portuguese dictionaries and also several search engines.
Here is a Hungarian computer glossary found by Attila Török.
Sheila Kurc offers the above list of marketing glossaries.
Charles Heidenberg passes along this useful list of links to various English dictionaries, glossaries, and encyclopedias in special subject areas.
Dictionary of Terms commonly used in Compressed Air Systems. A nice British site that explains UK and European terms.
The complete glossary provided as an appendix in the book Hydraulic Component Design and Selection.
Glossary of fastener terms.
Radar Meteorology Glossary.
German-English gliding glossary, compiled by Karin Hülsemann. Up, up, and away!
Karin's German-English gliding glossary again, with French added by Philippe Lagarrigue.
Meteorological Terms and Definitions. Salvador Virgen suggests this site for glossaries, references, etc.
Charles Heidenberg suggests this site for free online dictionaries and also discussion forums.
Tom Whittaker says this page "is great for technical acronyms".
A bouquet of auto insurance glossaries from Ildikó Méry.
Marcin Rey suggests this "very small EN/EN glossary about refrigeration".
Eva Stabenow found this multilingual spice glossary.
Francesca Marchei points out this 14-language astronomy glossary.
Catherine Guilliaumet found this "fantastic dictionary English/Spanish of Clinical Lab Sciences". She warns that the "Parent directory" in the index is an invalid link, but the ones for the individual letters of the alphabet work fine (e.g., dictj.html = Section J).
Eva Easton points out this Russian-French online dictionary. Others are also listed on the same page.
Eva Easton keeps links to Russian-Other Language dictionaries here. Also Russian-English, Russian-Russian and links for Russifying your computer.
Eva's list of links to multilingual dictionaries.
Anne Brandsma suggests this database for financial terminology (English, German, French and Italian).
Anne Brandsma points out this French-English glossary of gastronomy.
Franc Smrke suggests taking a look at this huge list of links to specialized online glossaries.
Eva Easton provides this "page of online medical dictionaries, English & other languages."
Anna Swierkosz points out this "Glossary of Speaker Terms - This page presents some of the more popular terms used to describe the performance of a loudspeaker in a musical instrument amplifier."
The photonics dictionary, also from Anna.
The bowler's bowling dictionary, also from Anna.
Corrosion Glossary (also from Anna).
Dictionary of Automotive Terms + Abbreviations (another find by Anna).
French<->English biotech glossary.
A Glossary of Terms in Recombinant DNA Technology.
Water and Wastewater Glossary.
Intellectual Property Reference Library Glossary.
Excellent and detailed Mathematical Programming Glossary.
Salvador Virgen suggests this glossary of film terms.
Margarita Friedman suggests this English glossary on e-commerce.
Steven Geller announced this find: Le Glossaire Québécois "Plus de 3.000 mots et expressions du joual, le langage populaire du Québec". Shock warning for the sensitive because of some of the entries... You have to toss a Petit Larousse into the water to enter the site!
Michael Molin suggests this "A to Z of financial terms".
Telemedicine Glossary.
Michael Roehrig suggested this explanatory German Glossar Fracht & Transport (inkl. Inco-Terms) - includes some English.
Svetlana Kyyashko points out this Russian Abbreviations Server.
Suz Falcone found this "interesting glossary on hydrology (definitions in German + English equivalents)".
Glossary of Print Techniques (Glossaire des techniques de la Gravure). French and English. Good explanations.
PhotoResource magazine's excellent photography glossary.
A Technical Dictionary of Printmaking by André Béguin. Very detailed.