kinin

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ki·nin

 (kī′nĭn)
n.
Any of various structurally related polypeptides, such as bradykinin, that act locally to induce vasodilation and contraction of smooth muscle.

[Short for bradykinin.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

kinin

(ˈkaɪnɪn)
n
1. (Biochemistry) any of a group of polypeptides in the blood that cause dilation of the blood vessels and make smooth muscles contract
2. (Botany) another name for cytokinin
[C20: from Greek kin(ēma) motion + -in]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ki•nin

(ˈkaɪ nɪn, ˈkɪn ɪn)

n.
2. any of a group of hormones, formed in body tissues, that cause dilation of blood vessels.
[1950–55; (cyto) kin (esis) + -in1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.kinin - any of a class of plant hormones that promote cell division and delay the senescence of leaves
growth regulator, phytohormone, plant hormone - (botany) a plant product that acts like a hormone
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