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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...

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

Math explained in easy language, plus puzzles, games, quizzes, worksheets and a forum. For K-12 kids, teachers and parents.

The National Library of Medicine (NLM), on the campus of NIH in Bethesda, Maryland, is the world

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

Accurate, up-to-date, comprehensive cancer information from the U.S. government

Mayo Clinic — Comprehensive medical diagnosis and treatment; locations and services; request an appointment.

TransMac (Open Mac disks and dmg files from a Windows PC), CrossFont (Convert fonts between Mac and Windows PC)

The largest and most trusted free online thesaurus. Quickly find accurate and up-to-date synonyms, antonyms, and related words at Thesaurus.com. Synonym dictionary, antonym dictionary, words synonyms.

Comprehensive encyclopedia of mathematics with 13,000 detailed entries. Continually updated, extensively illustrated, and with interactive examples.

CDC Centers for Disease Control and Prevention - Your Online Source for Credible Health Information