Cosh
[kosh] /kɒʃ/ Chiefly British Slang.
noun
1.
a blackjack; bludgeon.
verb (used with object)
2.
to hit on the head with a cosh.
[kosh] /kɒʃ/
noun, Mathematics.
1.
hyperbolic cosine.
/kɒʃ/
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
/kɒʃ; ˈkɒsˈeɪtʃ/
noun
1.
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
n.
“stout stick,” 1869, of unknown origin.
cosh
Abbreviation of hyperbolic cosine
noun
hyperbolic cosine
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