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http://www.merriam-webster.com/ American English dictionary
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http://www.worldwidewords.org/ origin of unusual words
http://ghr.nlm.nih.gov/glossary genetic terms
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http://www.medterms.com/script/main/alphaidx.asp?p=a_dict medical dictionary
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http://www.botany.ch/dictionaries.htm botany dictionaries
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http://www.novac.com/wp/fp/resources/glossary/ astronomy
http://www.sfcv.org/learn/glossary?gclid=CJ6wqfrZyqwCFQM75Qod9h-QqA musical terms
http://xlinux.nist.gov/dads// alogoriths and data structures
http://www.netlingo.com/index.php internet terms
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