heliotropism

== English == === Etymology === From helio- +‎ -tropism. === Noun === heliotropism (countable and uncountable, plural heliotropisms) The property of some plants of turning under the influence of light; either positively (towards the light) or negatively (away from the light). Coordinate terms: heliophilia, paraheliotropism, heliophobia 2012, Staff (University of Wisconsin-Madison), Sunflowers inspire more efficient solar power system, R&D Magazine, online: A field of young sunflowers will slowly rotate from east to west during the course of a sunny day, each leaf seeking out as much sunlight as possible as the sun moves across the sky through an adaptation called heliotropism. ==== Related terms ==== ==== Translations ==== == Romanian == === Etymology === Borrowed from French héliotropisme. === Noun === heliotropism n (uncountable) heliotropism ==== Declension ====