Definition of castor:
- A genus of rodents, including the beaver. See Beaver.
- A hat, esp. one made of beaver fur; a beaver.
- A heavy quality of broadcloth for overcoats.
- Alt. of Castorite
- Castoreum. See Castoreum.
- See Caster, a small wheel.
- the northernmost of the two bright stars in the constellation Gemini, the other being Pollux.
Her colour was of two sorts, for her body was white as descended from heaven, and her smocke was blewish, as arrived from the sea: After every one of the Virgins which seemed goddesses, followed certaine waiting servants, Castor and Pollus went behind Juno, having on their heads helmets covered with starres.- "The Golden Asse", Lucius Apuleius.
And on their rushing in with great noise and terror, all the rest dispersed and ran away, except Cato, who alone stood still, while the other party threw sticks and stones at him from above, until Murena, whom he had formerly accused, came up to protect him, and holding his gown before him, cried out to them to leave off throwing; and, in fine, persuading and pulling him along, he forced him into the temple of Castor and Pollux.- "Plutarch-Lives-of-the-noble-Grecians-and-Romans", Clough, Arthur Hugh.
- "Wanderers", Knut Hamsun.