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Webster 1913 Edition

Apheliotropism

A-pheˊli-ot′ro-pism

,

Noun.

The habit of bending from the sunlight; – said of certain plants.

Definition 2025

apheliotropism

apheliotropism

English

Noun

apheliotropism ‎(uncountable)

The habit of bending away from sunlight, as some plants do.