Castor (mountain)
WordNet
noun
(1) Type genus of the Castoridae: beavers
(2) A hat made with the fur of a beaver (or similar material)
(3) A pivoting roller attached to the bottom of furniture or trucks or portable machines to make them movable
(4) A shaker with a perforated top for sprinkling powdered sugar
(5) A multiple star with 6 components; second brightest in Gemini; close to Pollux
WiktionaryText
Etymology
1398 castor < < Greek .
Proper noun
Castor
- : One of the Dioscuri
- : A double star in the constellation Gemini; alpha (α) Geminorum.