ALL meanings of castoreum
cas·tor·e·um
C c - noun castoreum the oil secreted from the beaver which is used as bait by trappers 3
- noun castoreum The bitter exudate of the castor sacs of mature beavers. 1
- noun castoreum castor1 (def 1). 1
- noun castoreum (archaic) A hat made from beaver fur. 0