[ka-stawr-ee-uh m, -stohr-]
Origin of castoreum
< Latin < Greek kastórion, equivalent to kastor- (stem of kástōr) beaver + -ion, neuter of -ios adj. suffix
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for castoreum
Of the infatuation of this animal for castoreum he saw several instances.The Western World
Castoreum was the most popular of these, and from it was compounded the great cure-all.
Next in importance to its skin, the beaver was valued for the castoreum it yielded.
Castoreum has done good in this as in spasmodic dysmenorrhea.Psychotherapy
James J. Walsh
You have denied that the vesicles of the otter are equivalent to castoreum.The Man Who Laughs