Dictionaries

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Math Dictionaries

Mathwords http://www.mathwords.com

Math Progress Glossary http://www.mathpropress.com/glossary/glossary.html

Dictionary Mathematics http://dictionarymathematics.info/info/Math-Glossary

General Dictionaries

Dictionary.com http://www.dictionary.com/

Merriam-Webster Online http://www.m-w.com/

InfoPlease.com http://www.infoplease.com/

NetLingo http://www.netlingo.com/

Free On-Line Dictionary of Computing http://wombat.doc.ic.ac.uk/foldoc/

CNET Glossery http://coverage.cnet.com/Resources/Info/Glossary/

Dictionary of PC Hardware and Data Communications Terms http://www.ora.com/reference/dictionary/

OneLook Dictionaries http://www.onelook.com/
3,000,893 words in 597 dictionaries now indexed