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[ki-nee-sis, kahy-] /kɪˈni sɪs, kaɪ-/
noun, Physiology
the movement of an organism in response to a stimulus, as light.
1900-05; < Greek kī́nēsis movement, equivalent to kīnē-, verbid stem of kīneîn to move + -sis -sis


a combining form with the general sense “movement, activity,” used in the formation of compound words, often with the particular senses “reaction to a stimulus” (photokinesis), “movement without an apparent physical cause” (telekinesis), “activity within a cell” (karyokinesis).
Compare -kinesia.
< Greek -kīnēsis; see kinesis Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for kinesis
  • Protein kinesis: the dynamics of protein trafficking and stability.
British Dictionary definitions for kinesis


/kɪˈniːsɪs; kaɪ-/
(biology) the nondirectional movement of an organism or cell in response to a stimulus, the rate of movement being dependent on the strength of the stimulus
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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Word Origin and History for kinesis

"physical movement," 1819, from Greek kinesis "movement, motion" (see cite).

Online Etymology Dictionary, © 2010 Douglas Harper
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kinesis in Medicine

kinesis ki·ne·sis (kə-nē'sĭs, kī-)
n. pl. ki·ne·ses (-sēz')
Motion or physical movement, especially movement that is induced by stimulation.

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