Definition, Meaning & Synonyms

heliotropism

Noun
/ˌhiːliəʊˈtrɒpɪz(ə)m/
Definition
Heliotropism is the directional growth of an organism in response to sunlight.
Examples
  • Sunflowers exhibit heliotropism by turning their heads to follow the sun throughout the day.
  • The heliotropic behavior of certain flowers makes them more appealing to pollinators.
Meaning
It refers to the tendency of plants to grow or bend toward the direction of sunlight, maximizing their ability to photosynthesize.
Synonyms
  • Phototropism
  • Sun-following