heliotactic /hee'lee oh tak"tik/, adj.
/hee'lee oh tak"sis/, n. Biol.
movement of an organism toward or away from sunlight.
[1895-1900; HELIO- + -TAXIS]

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Universalium. 2010.

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  • heliotaxis — [hē′lē ō tak′sis] n. [ModL: see HELIO & TAXIS] the positive, or negative, response of a freely moving organism toward, or away from, sunlight …   English World dictionary

  • heliotaxis — n. [Gr. helios, sun; taxis, arrangement] Taxis with sunlight as the stimulus; see phototaxis …   Dictionary of invertebrate zoology

  • heliotaxis — A form of phototaxis, and perhaps of thermotaxis, in which there is a tendency to growth or movement toward (positive h.) or away from (negative h.) the sun or the sunlight. SYN: heliotropism. [helio + G. taxis, orderly arrangement] * * *… …   Medical dictionary

  • heliotaxis — n. movement of organisms toward or away from sunlight (Biology) …   English contemporary dictionary

  • heliotaxis — he·lio·tax·is …   English syllables

  • heliotaxis — he•li•o•tax•is [[t]ˌhi li oʊˈtæk sɪs[/t]] n. bio movement of an organism toward or away from sunlight • Etymology: 1895–1900 he li•o•tac′tic tɪk adj …   From formal English to slang

  • heliotaxis — /hilioʊˈtæksəs/ (say heeleeoh taksuhs) noun a phototaxis in response to sunlight. {helio + taxis} –heliotactic, adjective …  

  • heliotaxis —   n. movement towards or away from sunlight.    ♦ heliotactic, a …   Dictionary of difficult words

  • heliotaxis — |hēlēō|taksə̇s noun Etymology: New Latin, from heli (I) + taxis : phototaxis in which sunlight is the stimulus * * * heliotactic /hee lee oh tak tik/, adj. /hee lee oh tak sis/, n. Biol. movement of an organism toward or aw …   Useful english dictionary

  • heliotropism — SYN: heliotaxis. [helio + G. trope, a turning] * * * he·li·ot·ro·pism .hē lē ä trə .piz əm n phototropism in which sunlight is the orienting stimulus he·lio·tro·pic lē ə trōp ik, träp adj * * * he·li·ot·ro·pism (he″le otґro piz əm)… …   Medical dictionary

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