- the movement of an organism in response to a stimulus, as light.
- 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).
- 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
“physical movement,” 1819, from Greek kinesis “movement, motion” (see cite).
n. pl. ki•ne•ses (-sēz′)
- Motion or physical movement, especially movement that is induced by stimulation.