noun
- The plural of heliotropism; the tendency of plants or organisms to turn toward or grow in response to sunlight.
Usage: biology; botany
Examples
- The heliotropisms of sunflowers allow them to track the sun across the sky during the day.
- Scientists study heliotropisms to understand how plants optimize light absorption.
- Different plant species exhibit varying degrees of heliotropisms depending on their environment.
- The heliotropisms observed in morning glories help them maximize photosynthesis.
- Researchers documented the heliotropisms of seedlings in controlled laboratory conditions.