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Pronunciation varies by accent · noun
(botany) 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.
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; […]
Use heliotropism when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Heliotropism means (botany) The property of some plants of turning under the influence of light; either positively (towards the light) or negatively (away from the light)..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
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.
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