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English definition of “phototropism”

phototropism

noun [U] uk   /fəʊˈtɒt.rə.pɪ.zəm/ /foʊˈtɑː.trə-/ specialized us  
the growth or movement of a plant, or of a particular part of a plant, towards light or away from itPlant biochemistry
(Definition of phototropism from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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