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Translation by Babylon is a free online version of Babylon

The authoritative Collins dictionaries now available online. Search amongst hundreds of thousands of words and expressions in Spanish, French, German, Italian, Chinese, Portuguese, Russian and synonyms dictionaries.

Vocabulary.com helps you learn new words, play games that improve your vocabulary, and explore language.

Forvo: the largest word pronunciation dictionary in the world, now with translations. All the words in all the languages pronounced by native speakers

Providing researchers with access to millions of scientific documents from journals, books, series, protocols and reference works.

Dictionaries and translators on dictionary.sensagent.com

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Find what you want in a library near you with WorldCat, a global catalog of library collections.

The Philadelphia Area Center for History of Science (PACHS) promotes scholarly and public understanding of history of science, technology and medicine.

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