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

Words within castors