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Geology and Earth Science current events, news, articles, dictionary, satellite images, career information, reference maps, and more.

Physical Sciences Social Sciences Acoustics - a glossary of over 980 terms related to acoustics. Chemistry - a glossary of nearly 1400 terms related to chemistry. Electronics - a glossary of over 300 terms related to electronics. Environment - a glos...

Dictionary.com - the largest and most trusted free online dictionary. Instantly look up accurate and extensive definitions and word meanings, and hear audio pronunciations.

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Online Dictionary - Multiple dictionaries including: English dictionary, medical dictionary, legal dictionary, financial dictionary, computer dictionary, thesaurus, dictionary of acronyms and abbreviations, dictionary of idioms, thesaurus, Columbia e...

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Definition of word from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games.

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Free Online English Dictionary & Thesaurus, translation from English to Spanish & Turkish and Spanish to English and other language resources. Conjugation dictionary. Audio pronunciation. Publisher: Cambridge Univeristy Press.

Free online English dictionary, dictionaries and grammars for 350 languages, crossword puzzles, word games, language jokes, and a daily Good Word by linguist Robert Beard (Dr. Goodword).