heliotropism
English
Etymology
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)
- 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.
- 2012, Staff (University of Wisconsin-Madison), Sunflowers inspire more efficient solar power system, R&D Magazine, online:
Derived terms
- heliotropic
Related terms
- heliotrope
Translations
the property of some plants of turning under the influence of light
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