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 Meaning of CASTOR
| Pronunciation: |  | 'kastur, 'kastur 
 
 |  |  WordNet Dictionary |  |  |  |  | Definition: |  | 
[n]  type genus of the Castoridae: beavers  [n]  a hat made of beaver fur or similar material  [n]  a pivoting roller attached to the bottom of furniture or trucks or portable machines to make them movable  [n]  a shaker with a perforated top for sprinkling powdered sugar  [n]  a multiple star with 6 components; second brightest in Gemini; close to Pollux   |  |  |  |  | Sponsored Links: |  |  |  |  |  |  | Synonyms: |  | Alpha Geminorum, beaver, caster, genus Castor |  |  |  |  | See Also: |  | beaver, Castoridae, family Castoridae, fur hat, Gemini, mammal genus, multiple star, roller, shaker |  |     |  |  Webster's 1913 Dictionary |  |  |  |  | Definition: |  | 
\Cas"tor\, n. [L. castor the beaver, Gr. ?; of uncertain
origin.]
1. (Zo["o]l.) A genus of rodents, including the beaver. See
   {Beaver}.
2. Castoreum. See {Castoreum}.
3. A hat, esp. one made of beaver fur; a beaver.
         I have always been known for the jaunty manner in
         which I wear my castor.               --Sir W.
                                               Scott.
4. A heavy quality of broadcloth for overcoats.
\Cast"or\, n.
See {Caster}, a small wheel.
\Cas"tor\, n. [L.] (Astron.)
the northernmost of the two bright stars in the constellation
Gemini, the other being Pollux.
\Cas"tor\, Castorite \Cas"tor*ite\, n. [The minerals
castor and pollux were so named because found together on the
island of Elba. See {Castor and Pollux}.] (Min.)
A variety of the mineral called petalite, from Elba.
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