Definition of "heliotropism" in İngilizce

noun

1. The property of some plants of turning under the influence of light; either positively (towards the light) or negatively (away from the light).

   • 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.