from The Century Dictionary.

  • noun Same as castor.

from the GNU version of the Collaborative International Dictionary of English.

  • noun A peculiar bitter orange-brown substance, with strong, penetrating odor, found in two sacs between the anus and external genitals of the beaver; castor; -- used in medicine as an antispasmodic, and by perfumers.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun The bitter exudate from the castor sacs of mature beavers


Sorry, no etymologies found.



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  • There is a term for every thing.

    November 27, 2010

  • Eeeew!

    November 28, 2010

  • See barkstone.

    January 21, 2011

  • also, disgustingly, one of the "natural flavors" of food ingredient listings. Used to impart a "vanilla" flavor to puddings, candies, etc.

    January 21, 2013

  • Reminds me of how civet is used in perfumery and in the coffee industry. Hey--if civets bring us regular kopi luwak, I wonder whether beavers could provide vanilla-flavored coffees. Are there any animal anal glands that have a hazelnut aroma?

    January 21, 2013

  • Usage/historical note on ambergris.

    October 9, 2017