heliotaxis
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he·li·o·tax·is
(hē'lē-ō-tak'sis), A form of phototaxis, and perhaps of thermotaxis, in which there is a tendency to growth or movement toward (positive heliotaxis) or away from (negative heliotaxis) the sun or the sunlight.
[helio- + G. taxis, orderly arrangement]
Farlex Partner Medical Dictionary © Farlex 2012
heliotaxis
(hē′lē-ō-tăk′sĭs)n. The movement of an organism in response to the light of the sun.
he′li·o·tac′tic (-tăk′tĭk) adj.
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