Available Definitions:
1) n. - A genus of rodents, including the beaver. See Beaver .
2) n. - Castoreum. See Castoreum .
3) n. - A hat, esp. one made of beaver fur; a beaver.
4) n. - A heavy quality of broadcloth for overcoats.
5) n. - See Caster , a small wheel.
6) n. - the northernmost of the two bright stars in the constellation Gemini, the other being Pollux.
7) n. - Alt. of Castorite