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WordReference Random House Unabridged Dictionary of American English © 2024ki•ne•sis (ki nē′sis, kī-),USA pronunciation n. [Physiol.]- Physiologythe movement of an organism in response to a stimulus, as light.
- Greek kí̄nēsis movement, equivalent. to kīnē-, verbid stem of kīneîn to move + -sis -sis
- 1900–05
- 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). Cf. -kinesia.
- Greek -kīnēsis; see kinesis
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