castoreum † DCHP-1 (pre-1967)
1a n.
See 1908 quote.
See also: castor (def. 2a)
1b n.
the secretion from the scent glands of the beaver used as a lure or as an ingredient in a lure.
See also: beaver medicine
2 n.
the scent sac or sacs of the beaver.
See also: castor (def. 2b)