heliotaxis

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he·li·o·tax·is

 (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.

heliotaxis

(ˌhiːlɪəʊˈtæksɪs)
n
(Physiology) movement of an entire organism in response to the stimulus of sunlight
heliotactic adj

he•li•o•tax•is

(ˌhi li oʊˈtæk sɪs)

n.
movement of an organism toward or away from sunlight.
[1895–1900]
he`li•o•tac′tic (-tɪk) adj.

heliotaxis

a tendency of certain plants to move in response to sunlight.
See also: Plants
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