- A genus of rodents, including the beaver. See Beaver. - Castoreum. See Castoreum. - A hat, esp. one made of beaver fur; a beaver. - A heavy quality of broadcloth for overcoats. - See Caster, a small wheel. - the northernmost of the two bright stars in the
constellation Gemini, the other being Pollux. - Alt. of Castorite
Definition
[ n.]