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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.

Biology Online, information in the life sciences in the form of tutorials, references and an online dictionary of biology terms.

The home page of the Mathematics Archives - A comprehensive site for mathematics on the Internet

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

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

A full service civil engineering firm comprised of planners, civil engineers, and land surveyors. Serving the San Francisco Bay Area since 1982.

An encyclopedic collection of math resources for all grades. Arithmetic games, problems, puzzles, and articles

YourDictionary is a free online dictionary that offers definition search from Webster's dictionary for word meanings and thesaurus. Use this dictionary search as a crossword or scrabble dictionary. Also find legal dictionary, technical words, glossar...

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Delphi, the modern Pascal descendent, is introduced as a "learn by example" tool to solve math and science puzzles and problems

Definitions.net: The A to Z of Dictionary Definitions on the Net!