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| ki·ne·sis [ ki nssiss, kī nssiss ] |
noun |
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| Definition: |
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motion in response to stimulus: the movement of a cell or organism in response to a stimulus such as light. Such movement can be in any direction and its rate depends on the intensity of stimulation.
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| [Early 20th century. < Greek kinēsis "movement" < kinein "to move"] |
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