kinin

(nin)

noun

a powerful, short-lived peptide that lowers blood pressure, increases vascular permeability, dilates blood vessels, causes smooth muscle to contract, and triggers pain

Origin: < kin(etic) + -in

See kinin in American Heritage Dictionary 4

noun
Any of various structurally related polypeptides, such as bradykinin, that act locally to induce vasodilation and contraction of smooth muscle.

Origin:

Origin: Short for bradykinin

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