Meaning of heliotropism | Babel Free

Definitions

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

countable, uncountable

Equivalents

Examples

“As soon as the faintest ray of light reaches a seedling, heliotropism will guide it through any crack in the soil, or through an entangled mass of overlying vegetation; […]”

“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.”

CEFR level