heliotropism

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he·li·ot·ro·pism

 (hē′lē-ŏt′rə-pĭz′əm)
n.
Growth or orientation of a sessile organism, especially a plant, toward or away from the light of the sun.

he′li·o·tro′pic (-ə-trō′pĭk) adj.

heliotropism

(ˌhiːlɪˈɒtrəˌpɪzəm) or

heliotropy

n
(Botany) the growth of plants or plant parts (esp flowers) in response to the stimulus of sunlight, so that they turn to face the sun
heliotropic, heliotropical adj
ˌhelioˈtropically adv

he•li•ot•ro•pism

(ˌhi liˈɒ trəˌpɪz əm, -əˈtroʊ pɪz-)

n.
heliotropic tendency or growth.
[1850–55]

he·li·ot·ro·pism

(hē′lē-ŏt′rə-pĭz′əm)
The growth or movement of a fixed organism, especially a plant, toward or away from sunlight.

heliotropic (hēl′lē-ə-trō′pĭk, hēl′lē-ə-trŏp′ĭk) adjective

heliotropism

the tendency in some plant species to turn or grow toward sunlight. — heliotrope, n.heliotropic, adj.
See also: Plants
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.heliotropism - an orienting response to the sun
tropism - an involuntary orienting response; positive or negative reaction to a stimulus source
Translations