Castor

Cast´or

n.	1.	(Zool.) A genus of rodents, including the beaver. See Beaver.
	2.	Castoreum. See Castoreum.
	3.	A hat, esp. one made of beaver fur; a beaver. I have always been known for the jaunty manner in which I wear my castor. - Sir W. Scott.
	4.	A heavy quality of broadcloth for overcoats.
	1.	See Caster, a small wheel.
	1.	(Astron.) the northernmost of the two bright stars in the constellation Gemini, the other being Pollux.
	1.	(Min.) A variety of the mineral called petalite, from Elba.

Noun	1.	Castor - a multiple star with 6 components; second brightest in Gemini; close to Pollux Synonyms: Alpha Geminorum
	2.	castor - a shaker with a perforated top for sprinkling powdered sugar Synonyms: caster
	3.	castor - a pivoting roller attached to the bottom of furniture or trucks or portable machines to make them movable Synonyms: caster
	4.	castor - a hat made of beaver fur or similar material Synonyms: beaver
	5.	Castor - type genus of the Castoridae: beavers Synonyms: genus Castor