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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.


(ˌhiːlɪˈɒtrəˌpɪzəm) or


(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


(ˌhi liˈɒ trəˌpɪz əm, -əˈtroʊ pɪz-)

heliotropic tendency or growth.


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


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
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References in periodicals archive ?
But the suggestion that "we see not yet" is reinforced in the image of the wheat heliotropically seeking the sun before it rises: the wheat certainly will see the sun towards which it bends.
Dickinson's "Parties," or flowers, seem to go "Nowhere" by following the sun heliotropically. The circumference of Augustine seems radically diminished here, and the "Nowhere" that was testimony to God's power seems now an aimlessness, or the innocence of existing that we might associate with the simple beauty of a flower.