Meaning of castor

Definition of castor

(noun) a multiple star with 6 components; second brightest in Gemini; close to Pollux
a shaker with a perforated top for sprinkling powdered sugar
a pivoting roller attached to the bottom of furniture or trucks or portable machines to make them movable
a hat made with the fur of a beaver (or similar material)
type genus of the Castoridae: beavers

Other information on castor

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