Castor

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

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.