Dictionary and Thesaurus

Definition of Castor

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

Synonyms of Castor

• Castor
• Alpha Geminorum
• Caster
• Caster
• Beaver
• Castor
• Genus Castor

Antonyms of Castor

Homophones of Castor

• Caster