Heliotropism
noun
noun ·Rare ·Advanced level
Definitions
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). countable, uncountable
"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; […]"
- 2 an orienting response to the sun wordnet
Example
More 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; […]"
Etymology
From helio- + -tropism.
More for "heliotropism"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.