# heliotropism

> English word · Noun

## Definitions
1. The property of some plants of turning under the influence of light; either positively (towards the light) or negatively (away from the light).

## Etymology
From helio- + -tropism.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/heliotropism