heliotropic


he·li·ot·ro·pism

H0132200 (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.

he•li•o•trop•ic

(ˌhi li əˈtrɒp ɪk, -ˈtroʊ pɪk)

adj. turning or growing toward the light, esp. sunlight. [1870–75] he`li•o•trop′i•cal•ly, adv.
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