HELIOTROPISM


Meaning of HELIOTROPISM in English

ˌhēlēˈä.trəˌpizəm, ˈhēlēə.ˌtrōˌp- noun

Etymology: International Scientific Vocabulary heli- (I) + -tropism

: phototropism in which sunlight is the orienting stimulus (as in sunflower heads turning with the sun) — compare apheliotropism

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.