kinin

[ kahy-nin, kin-in ]
/ ˈkaɪ nɪn, ˈkɪn ɪn /

noun Biochemistry.

cytokinin.
any of a group of hormones, formed in body tissues, that cause dilation of blood vessels and influence capillary permeability.

QUIZZES

QUIZ YOURSELF ON THESE WORDS FROM BROWN GIRL DREAMING!

Visualize yourself passing this quiz on words from Jacqueline Woodson’s exquisite verse novel “Brown Girl Dreaming,” and then take the quiz to prove you can do it! (Because you can.)
Question 1 of 10
What does “barren” mean?
a cylindrical wooden container with slightly bulging sides.
Worn down by dullness, tedious repetition.
unproductive; unfruitful
TAKE THE QUIZ TO FIND OUT

Origin of kinin

1950–55; independent use of -kinin, or (cyto)kin(esis) + -in2

Definition for kinin (2 of 2)

-kinin

a combining form used in the names of hormones, especially peptide hormones: bradykinin; cytokinin.

Origin of -kinin

<Greek kīn(eîn) to move, set in motion (cf. kinesis, kinetic) + -in2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for kinin

kinin
/ (ˈkaɪnɪn) /

noun

any of a group of polypeptides in the blood that cause dilation of the blood vessels and make smooth muscles contract
another name for cytokinin

Word Origin for kinin

C20: from Greek kin (ēma) 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

Medical definitions for kinin

kinin
[ kī′nĭn ]

n.

Any of various polypeptides, such as bradykinin, that act locally to induce vasodilation and contraction of smooth muscle.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.