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Online Dictionaries - Medical and Technical

Online Dictionaries From Around The World!
Presented here is a collection of pages with links to online dictionaries in languages from all over the world, including monolingual online dictionaries, bilingual online dictionaries, online technical and specialty dictionaries, and online translation engines and hyper-dictionaries. If you find any of the links dead and you want to notify us, or if you have recommendations for another dictionary to add to the site, contact us by email at

Afrikaans | Arabic | Armenian | Basque | Bulgarian | Catalan | Chinese | Czech-Slovak | Danish | Dutch | Estonian | Finnish | French | Gaelic | German | Greek | Hungarian | Indonesian | Italian | Japanese | Korean | Latin | Latvian | Lithuanian | Norwegian | Pashto | Persian | Polish | Portuguese | Romanian | Russian | Serbian and Croatian | Slovenian | Spanish
| Online Dictionaries Main Index


Paramediese Vakwoordeboek - Afrikaans medical vocabulary list with translations into English and Afrikaans.


Dictionarybay Specialized Dictionaries - A number of medical, technical, and other specialized dictionaries in Arabic-English - great repository.
Altibbi - The Arabic Medical Dictionry - Online Arabic medical dictionary and medical reference, with over 20,000 concise definitions of medical terms and terms used in the health sciences, with authoritative descriptions of medical conditions, medications, conventional medical and healing practices, anatomical terms, physiology terms, disease terms, drugs, tests and procedures, noted medical personalities, medical disorders and more. All Arabised and explained in Arabic, with a glossary matching each word with its synonym in English.
ACMLS Medical Dictionaries - Hosts a number of different Arabic medical dictionaries online; very extensive.
Unified Medical Dictionary from World Health Organization - Searchable bilingual Arabic-English medical dictionary database with access to a number of different specialized dictionaries.
HMC Arabic-English Medical Dictionaries - Translates medical terms in both direcitons.
Arabic Microfinance Gateway - English-Arabic dictionary of financial terms.
Online Financial Glossary - Searchable, in Arabic-French-English.


The First English-Russian-Armenian On-Line Dictionary For Businessman - HTML online trilingual dictionary for Armenian-English-Russian legal and business terminology; requires Armenian fonts.
Armenian-English Medical Terms - Bidirectional glossary of medical terms
Armenian Medical Glossaries - For English-Armenian-and Russian-Armenian.


Banco Terminológico Público Vasco Multilingual Dictionary - Online dictionary of terminology that takes a word in either Basque, English, French, or Spanish, and gives the equivalent words in the other languages. English interface here.


Bulgarian-English Math Dictionary - Math dictionary in HTML format.
Dictionary.Fashion - English-Bulgarian dictionary of fashion and textile terms.


Diccionari Enciclopèdic de Medicina - Online Catalan dictionary of medicine; gives the meanings for medical terms in Catalan, English, and Spanish, with definitions and explanations in Catalan.
ESADE Technological Dictionary - Terminology used in the fields of economics, law and computer science, with translation from Catalan, English, and Spanish.


Esaurus English-Chinese Medical Dictionary - This online resource tool, intended for both professional and public use, is manually compiled with reference to an extensive collection of bilingual medical dictionaries and glossaries published by institutions and healthcare authorities in the People's Republic of China, Taiwan and Hong Kong.
Dr.Dict English-Chinese Medical Dictionary - With a total of 638,000 entries, with 420,000 unique entries including a English Chinese Medical Dictionary, English Chinese Biological Terms, and English Chinese Technological Terms.
Traditional Chinese Medical Glossary - Terms are listed in both English and Chinese phonetic alphabets for easier searching, and the explanations are written in English and Chinese.
English-Chinese Glossary of Legal Terms - Searchable by headwords and expressions, in both English and Chinese.
English-Chinese Glossary of Financial Terms (in PDF) - Finanical and economic vocabulary.


Czech-English Environmental Dictionary - With over 85,000 terms
Slovak Medical Terminology (in PDF) - Slovak-English translations of around 7500 medical terms


List and Glossary of medical terms: Danish - Online medical glossary for a number of languages.
Danish-English Environmental Dictionary - Danish interface, with around 5000 words.
Informationsordbogen - Provides definitions for over 3000 terms related to library science and information technology
IT-leksikon - Information technology terms in Danish and English, HTML format.


Mijnwoordenboek - Dutch dictionaries to and from English, French, German, and Spanish, plus a number of specialized dictionaries, synonyms, verb conjugation, spelling, games, and more.
Taalvlinder's Collection of Dutch-English Specialty Dictionaries - A very extensive listing of dictionaries of all kinds - one of the most useful Dutch-English collections
Taalvlinder List of Medical Terms - A number of medical glossaries divided as to content. Dutch-English Medical Dictionary - Dutch-English glossary of medical terms.
List and Glossary Of Medical Terms: Dutch - Online medical glossary for a number of languages. Dutch-English Financial Dictionary - Contains over five thousand financial terms translated in their context and periodically updated with frequently asked translations - ideal for analysts, consultants, auditors and investors.
English-Dutch Listing of Legal Terms - A glossary of translations of English legal terminology into Dutch.
Dutch-English Business Dictionary - A practical dictionary for people who need to be able to read Dutch documents or business journals. The emphasis is on the translation of words that business people will need to use in business situations.
Dictionary of Technical Terms - A large collection of English and Dutch terms used in Computer Aided Technologies such as CAD, CAM, CAE, as well as Logistics and Information Technology in general.
Dutch Car Dictionary - Dictionary of automobile terminology to and from Dutch and English, French, and German.
Dutch-English Botanical Glossary - Bilingual Dutch-English glossary of botanical terms.
Woordenboek Organische - Dutch dictionary of organic chemistry. Dictionary of Electronics - Dutch dictionary of electronic terms.
Glossary of Construction Terms - Dutch-English glossary of terms used in the construction industry. Dutch Dictionary - Dutch rhyming dictionary.
Mick's Rijmwoorden Boek - Dutch rhyming dictionary.


ESTERM Legal Database - Estonian Legal Language Centre database of legal terminology and translations to and from Estonian, English, Danish, French, and Finnish.
English-Estonian-English Dictionary of Economics - With nearly 2100 terms defined.
UML Dictionary - Dictionary of terms from the Unified Modeling Language (UML) to and from English and Estonian.


Finnish Medical Glossary - Glossary of medical terms with definitions and explanations in Finnish.
Finnish-Swedish-English-Russian Mathematics Dictionary - Keyword search, also provides a view of all words in one page.
Finnish Mathematical Dictionaries - Listings of various mathematical translation materials in Finnish; the page is in English.
English-Finnish Mathematical Dictionary - With regular expression search.
Lexitec Finnish Glossaries - Features English-Finnish and Finnish-English glossaries of computer terms, free dictionary of Business English, and other items.
Index of Finnish Special Dictionaries - Directory in Finnish.


Le Grand Dictionnaire Terminologique anglais-francais - French interface, provides dictionary translations for technical terminology to and from French, English, and Latin.
Collins - Reverso English-French Medical Dictionary - Medical dictionary with English-French bidirectional translations.
List and Glossary of medical terms: French - Online medical glossary for a number of languages.
Dictionnaire économique - French dictionary of economics in HTML format, alphabetical index.
English-French Legal Glossary of Federal Statutes - English-French glossary of legal terminology and statutes, from Canada.
Canadian Common Law Dictionary - A dictionary of Canadian common law with translations into French, meant to serve the needs of French-speaking Canadians.
English-French European Employment and Industrial Relations Glossary - Glossary of employment and industrial management terms in the Euro zone for French and English.
Collins - Reverso English-French Business Dictionary - Business dictionary with English-French bidirectional translations.
Collins - Reverso English-French Computer Dictionary - Computer and information technology dictionary with English-French bidirectional translations.
Le Jargon Francais - A monolingual French computer and information technology dictionary in a wiki format, with contributions by users.
EBSI IT Glossary - Monolingual French glossary of information technology terms.
SIL French/English Glossary of Linguistic Terms - Glossary of linguistic tecnical vocabulary with 7,837 French linguistic terms and 8,059 English linguistic terms.
French-English-French Dictionary of Wine Economic Expressions - HTML dictionary of wine expressions in French and English.


Téarmaí Ríomhaireachta/Computing Terminology - Glossary of computing terms in Gaelic.
Gaelic Computing Terminology - Glossary of computing terms in Gaelic.


Deutsches Wörterbuch von Jacob und Wilhelm Grimm - The Grimm brothers lifework in a searchable form on the web contains 331,056 entries and 67,744 dictionary columns.
HEXAL Englischwörterbuch Medizin - German-English medical dictionary with over 30,000 terms.
Roche Lexikon Medizin - German monolingual glossary of medical terms
List and Glossary of medical terms: German - Online medical glossary for a number of languages. - German-English Linguistic Glossary - "This glossary contains definitions of linguistic terms, which are used for the generation of links and for indexing in canoonet. A search for one of these terms results in a hit list, where the individual list members point to glossary entries and grammatical descriptions."
Oesterreichischen Nationalbank - Financial Terms - Large German-English dictionary of financial and business terminology.
Deutsche Bank Banking and Stock Glossary - Financial, banking, and investment definitions in German and English.
Encyclopaedic Dictionary of Marketing - German-English bidirectional dictionary of marketing terms.
MathematicsThesaurus - Brief explanations of mathematical terms and ideas in English, Danish, German, Spanish, Finnish, Hungarian, Lithuanian, Polish, and Slovak
IMS - Ferrous Metallurgy, Electrical Engineering and Mechanical Engineering Technical Dictionary - Comprehensive English-German dictionary of engineering terminology.
German-English Mechatronics Lexikon - Dictionary of mechanical, engineering, and electronics terms in German and English.
Tranzmatic - A German-English technical dictionary containing approx. 40,000 terms, phrases and abbreviations.
Beilstein Dictionary of Organic Chemistry - HTML bilingual German-English dictionary.
Acronyms and Abbreviations - Acronyms and abbreviations in German and English, with a special emphasis on abbreviations of chemical compound names.
Computer-Lexikon Glossar Online-Lexikon - German translations of computer and information technology terms.
Lebensmittel Lexikon - German dictionary of culinary terms.


Dictionary of Medical Terminology - Greek monolingual medical dictionary with a Greek interface, in HTML format.
Immunology Glossary - English to Greek glossary of immunology terms, with an interface in Flash.
LawNet English-Greek Legal Dictionary - Dictionary of English legal terms and their Greek equivalents.
European Finance Dictionary 2008 - PDF Greek dictionaries of accounting and financial terminology for the EU, viewable and downloadable in PDF format.
English-Greek Dictionary of Insurance and Financial Terms - Bidirectional Greek-English HTML dictionary of financial terms.
Business Glossary - Bidirectional Greek-English HTML dictionary of business terms.
Infolex Informatics Terminology Dictionary - Bilingual dictionary of technical terminology with searches on terms and abbreviations.
Inforterm - Greek-English-French dictionary of information technology terminology with searchable interface.
Leo Burnett's Internet Glossary - Glossary of English internet vocabulary and their Greek equivalents.
Online Glossary of Linguistics Terminology - Bidirectional Greek-English dictionary of linguistics terminology, searchable and with HTML format.

Hungarian Hungarian-English Medical Dictionary - Medical dictionary in Hungarian and English.
Jarmuszotar Automotive Dictionary - Hungarian-English dictionary of automotive terms, with over 24,000 terms.
Electronics Glossary - An electronic library of documents and computerized information resources using the most common English words and abbreviations and their definitions in Hungarian.
Internet Glossary - HTML glossary of English internet terms with their Hungarian explanations.


Glosarium - A collection of specialized dictionaries for Indonesian


Pneumonet Medical Dictionary - Searchable dictionary of medical terms in Italian and English.
Italian>English Obstretic Glossary (PDF) - Downloadable and viewable online.
Acronimi (italiani e anglosassoni) usati in medicina di Gilberto Lacchia (PDF) - English medical acronyms and their Italian translations.
List and Glossary of medical terms: Italian - Online medical glossary for a number of languages.
Dental Dictionary - In English and Italian, searchable online.
Glossario di Economia e Finanza - Definitions of financial term in Italian and English in HTML format.
Dizionario di economia aziendale - HTML glossary of economic terms without index, single page, from Italian to English


Japan Surgical Society Dictionary - Medical terms and their definitions in Japanese.
Terminology of Cardiology - With Latin and katakana input.
MEDO (Medical English Dictionary Online) - Short medical glossary
Japanese-English Online Life Sciences Dictionary Project - Includes Life Sciences Dictionary, English to Japanese translation.
Biological Glossary - translations into Japanese of biological terms.
Chemical Substances Database - In Japanese and English, with over 25,000 terms.
An English-Japanese Dictionary of Electrical Engineering - With over 30,000 entires.
eWord IT Dictionary - Information technology terminology in HTML indexed format.
JAANUS : Japanese Architectural and Art Historical Terminology - In both English and Japanese


KMLE: Korean Medical Library Engine - Searchable Korean-English medical dictionary.
Korean-English Computer Terms - Searchable, with Korean interface.


Simone's Latin to Italian Dictionary of Roman Law Terms - Roman legal terminology and its translation into modern Italian.
William Smith's A Dictionary of Greek and Roman Antiquities.1875. - "This single volume, of 1294 pages in rather fine print set in two columns and amounting to well over a million words, is a treasure trove of information on the ancient world, and was for many years a standard reference work, carried thru several British and American editions from the first in 1842 to the last in 1890-91 with relatively few alterations. It shares one of its selling points with the Web: many illustrations. They are woodcuts, but often rather good ones, and sometimes clearer than photographs could be."


Multilingual Dictionary of Mathematics and Informatics - Multilingual (Latvian, Lithuanian, Estonian, Polish, English, French, German, Russian, Swedish, Finnish, Bulgarian) of mathematics and informatics.


Encyclopaedic Glossary of Astronomy - Astronomical terms in Lithuanian, with over 2200 terms.
Dictionary of Physics Terms - Physics terms in five languages (Lithuanian, English, French, German and Russian), with over 19,000 terms.
Multilingual Dictionary of Mathematics and Informatics - Multilingual (Latvian, Lithuanian, Estonian, Polish, English, French, German, Russian, Swedish, Finnish, Bulgarian) of mathematics and informatics.
English-Lithuanian Dictionary of Computer Science Terms - With over 7000 definitions.
Dictionary of Radionics Terms - Radionics terms in five languages (Lithuanian, English, French, German and Russian), with over 22,000 terms.
Dictionary of Building Terms - Short Lithuanian-English dictionary of terms in the construction industry.


The Green Dictionary - Terms from food and environmental science, agriculture, forestry, etc. 28,400 English, German and Norwegian entries.
Words and Phrases in Insurance - Monolingual Norwegian dictionary of insurance terms, searchable, or with entire page view of dictionary.
Norwegian Rhyming Dictionary - Listing by vowel word ending.


Qamosona Pashto Dictionaries Project - Site includes a number of Pasho dictionaries, which are all searchable for translations of English terms into Pashto, and includes datasets with computer and science terms.


Partran English to Parsi Translator - Translates text from English to Persian, with a great number of different specialized dictionaries for use. Text limit of 150 words per search. Also includes online English-Persian dictionary with a number of special lexical datasets.
An English-Persian Dictionary of Algorithms and Data Structures - Online dictionary of computer science terms categorized by letter, subject matter, area, and searchable.


Multilingual Dictionary of Mathematics and Informatics - Multilingual (Latvian, Lithuanian, Estonian, Polish, English, French, German, Russian, Swedish, Finnish, Bulgarian) of mathematics and informatics.


Dicionario Medico - Monolingual Portuguese medical dictionary.
List and Glossary of medical terms: Portuguese - Online medical glossary for a number of languages.
Dicionario Financeiro - Monolingual Portguese financial dictionary.
Portuguese Dictionary of Places and Names - Monolingual Portguese geographical dictionary.
Portuguese Dictionary of Foreign Words - Monolingual Portguese foreign loanwords dictionary.
Psiqweb - Portuguese psychological and mental health vocabulary.


Dictionar de Termeni Matematici Roman-Englez - Glossary of mathematical terms from Romanian into English.
Alcor Romanian Rhyming Dictionary - Romanian rhyming dictionary with a host of rhyming dictionaries in other languages.

Russian Comprehensive Medical Encyclopedia - Monolingual Russian encyclopedia with a questions about medical problems.
Glossary of Medical Terms - HTML glossary of medical terms and their Russian translations.
The Comprehensive Russian Computer Dictionary - Russian-English bilingual search; requires Cyrillic Windows-1251 encoding, and offers embedded regular expressions for substring and complex search patterns.
English-Russian Dictionary of Computing for Everyone - HTML English-Russian dictionary of computer terms.
Russian-English Oil Dictionary - Bilingual dictionary of oil and gas, financial, electrical, sea drilling, abbreviations terms, with phrase-book.
A Russian-English Collocational Dictionary of the Human Body - With font downloads.
Anatomical Dictionary (Russian-Latin)
Glossary of International Banking & Finance Acronyms and Abbreviation - HTML English-Russian dictionary of computer terms.

Serbian and Croatian

Croatian-English Glossary of Computer Terms - Croatian-English bilingual glossary of computer science terminology.


English-Slovenian Dictionary of Computer Science - Online searchable English-Slovenian computer science dictionary.


Medical Spanish Dictionary - "Click on one of the above medical Spanish dictionaries to look up Spanish medical terminology. Translations include coloquial usage, and all terms inlcude audio."
Diccionario medico-biologico, historico y etimologico - Spanish dictionary of biological and medical terms, with historical background and etymology
123teachme Spanish Medical Dictionary - HTML Spanish-English medical dictionary
List and Glossary of medical terms: Spanish - Online medical glossary for a number of languages.
Andy Miles English-Spanish Business Dictionary - With over 6000 terms.
Comparative CyberLexicon - Compilation of English terminology peculiar to computer culture and technology and its equivalents in Spanish.