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[brad-i-kin-in, -kahy-nin] /ˌbræd ɪˈkɪn ɪn, -ˈkaɪ nɪn/
noun, Biochemistry
a peptide hormone that dilates peripheral blood vessels and increases capillary permeability.
Origin of bradykinin
1945-50; brady- + -kinin Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for bradykinin
  • The damaged tissue releases chemicals including histamine, bradykinin, and serotonin.
British Dictionary definitions for bradykinin


/ˌbrædɪˈkaɪnɪn; ˌbreɪdɪ-/
a peptide in blood plasma that dilates blood vessels and causes contraction of smooth muscles. Formula: C50H73N15O11
Word Origin
C20: from brady- + Greek kin(ēsis) motion + -in
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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bradykinin in Medicine

bradykinin brad·y·ki·nin (brād'ĭ-kī'nĭn, -kĭn'ĭn)
A biologically active polypeptide that forms from a blood plasma globulin and mediates the inflammatory response, increases vasodilation, and causes contraction of smooth muscle. Also called kallidin I.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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