castor

play
noun cas·tor \ˈkas-tər\

Definition of castor

  1. 1 :  beaver 1a

  2. 2 :  castoreum

  3. 3 :  a beaver hat

Recent Examples of castor from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'castor.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of castor

Middle English, from Latin, from Greek kastōr, from Kastōr Castor


Castor

play
noun Cas·tor \ˈkas-tər\

Definition of Castor

  1. 1 :  one of the Dioscuri

  2. 2 :  the more northern of the two bright stars in Gemini

Recent Examples of castor from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'Castor.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of castor

Latin, from Greek Kastōr


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