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- WordNet 3.0
By Princeton University
- English Dictionary Database
By DataStellar Co., Ltd
- New Age Dictionary Database
By Oddity Software
- Webster's Revised Unabridged Dictionary
By Noah Webster.
- Nuttall's Standard dictionary of the English language
By Nuttall, P.Austin.
- Etymological and pronouncing dictionary of the English language
By Stormonth, James, Phelp, P. H.
Word of the day
Proposed as an adjuvant to cancer chemotherapy; may have radiation protective properties.