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heliotaxisenUK
he·li·o·tax·is H0131800 (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 adjhe•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. heliotaxisa tendency of certain plants to move in response to sunlight.See also: PlantsheliotaxisenUK
heliotaxis[¦hē·lē·ō¦tak·səs] (biology) Orientation movement of an organism in response to the stimulus of sunlight. heliotaxisenUK
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. Synonym(s): heliotropism [helio- + G. taxis, orderly arrangement] 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.heliotaxis (hē-lē-ō-tăk′sĭs) [″ + taxis, arrangement] A reaction in plants that causes them to respond negatively or positively to sunlight.negative heliotaxisA turning away from the sun.positive heliotaxisA turning toward the sun.ThesaurusSeeheliotropism |