cosh

Definition of Cosh in English :

1. blackjack, cosh, sap

a piece of metal covered by leather with a flexible handle; used for hitting people

2. cosh

hit with a cosh, usually on the head

WordNet Lexical Database for English. Princeton University. 2010.

Cosh

noun

1.

a blunt weapon, often made of hard rubber; bludgeon

2.

an attack with such a weapon

verb (transitive)

3.

to hit with such a weapon, esp on the head

noun

hyperbolic cosine; a hyperbolic function, cosh z = 1⁄2(ez + e–z), related to cosine by the expression cosh iz = cos z, where i = √–1

noun

1. British, Slang

a blackjack, bludgeon, or similar weapon

verb transitive

2. British, Slang

to strike with a cosh

n.

A weighted weapon similar to a blackjack.

tr.v. coshed, cosh·ing, cosh·es

To attack or hit with or as if with this weapon.

abbr.

hyperbolic cosine