Word.ws English Dictionary

castor sac

castor sac noun: an organ of a beaver releasing a secretion for refining the animal’s fell, popular in perfumery as under the name castoreum, and formerly used in medicine.

Noun

castor sac (plural castor sacs)

  1. An organ of a beaver releasing a secretion for refining the animal’s fell, popular in perfumery as under the name castoreum, and formerly used in medicine.

Forms of castor sac

pluralcastor sacs
alternative formcastor-sac

Questions about castor sac

What does castor sac mean?
Castor sac means an organ of a beaver releasing a secretion for refining the animal’s fell, popular in perfumery as under the name castoreum, and formerly used in medicine.
What part of speech is castor sac?
Castor sac is a noun.
What is the plural of castor sac?
The plural of castor sac is castor sacs.

Words near castor sac in the dictionary

  1. castor oil bean
  2. castor oil beans
  3. castor oil plant
  4. castor oil plants
  5. castor oils
  6. castor sac
  7. castor sacs
  8. castor sugar
  9. castor sugars
  10. castor-oil
  11. castor-oil bean

Source and license

Adapted from Wiktionary: castor sac (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “castor sac.” Word.ws, https://word.ws/castor_sac. Based on Wiktionary, CC BY-SA 4.0.