Bradykinin definition

brădĭ-kīnĭn, -kĭnĭn
A biologically active polypeptide, consisting of nine amino acids, that forms from a blood plasma globulin and mediates the inflammatory response, increases vasodilation, and causes contraction of smooth muscle.
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A kinin, C50H73N15O11, released from blood plasma by some snake venoms and certain other enzymes, which slows intestinal contractions, lowers blood pressure, etc.
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A biologically active polypeptide, consisting of nine amino acids, that forms from a blood plasma globulin and mediates the inflammatory response, increases vasodilation, and causes contraction of smooth muscle.
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(biochemistry) One of the kinins, a nonapeptide that reduces blood pressure by dilating blood vessels.
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Other Word Forms

Noun

Singular:
bradykinin
Plural:
bradykinins

Origin of bradykinin

  • brady– Greek kīnein to move keiə- in Indo-European roots –in

    From American Heritage Dictionary of the English Language, 5th Edition