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 cosh cosh /kɒʃ/

abbreviation

  1. Hyperbolic cosine (cosh) - Similar to sinh but with a positive value over its domain.  ( cosh )
    hyperbolic cosine (cosh) - Similar to sinh but with a positive value over its domain.

noun

  1. [Informal, British] A piece of metal covered by leather with a flexible handle; used for hitting people  ( blackjack [ N. American] , cosh [Informal, British] , sap [Informal, N. American] )
    a piece of metal covered by leather with a flexible handle; used for hitting people

verb

  1. [Informal, British] Hit with a cosh, usually on the head  ( cosh [Informal, British] )
    hit with a cosh, usually on the head