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castoreum
Variant of castor
noun
- Rare a beaver
- a sexual gland of the beaver containing a strong-smelling, oily substance used as a scent in trapping and in making perfumesalso castoreum
- a hat of beaver or rabbit fur
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
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