hyperbolic cosine
(mathematics) a hyperbolic function that is written in symbol cosh and defined as the following: cosh (x)= tfrac 1 2(eˣ+e⁻ˣ)
A female given name of modern usage.
(medicine, rare) Hairless (as the palm of the hand).
(cycling) The tendency of a chain to stick to chainrings and be sucked up into the bicycle instead of coming off the chainring, especially if it is worn or if conditions are dirty.
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