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[From Greek kīnēsis, movement; see kinesis.]
ki•ne•sis(kɪˈni sɪs, kaɪ-)
the movement of an organism in response to a stimulus, as light.
[1900–05; < Greek kinēsis movement]
a combining form with the meaning “movement, activity,” often used with the more 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]