castoreum means the bitter exudate of the castor sacs of mature beavers, used as a scent mark, and as a tincture in some perfumes. Lexicurio rates it Sui generis — a strength score of 90 out of 100.
noun
- The bitter exudate of the castor sacs of mature beavers, used as a scent mark, and as a tincture in some perfumes.“One of the substances tried was castoreum.[…]If I were to judge from my own experience, I would say castoreum has very little therapeutic power, for I have not seen much benefit from its employment in those cases to which this remedy is said to be adapted.”
- A hat made from beaver fur.