noun
- The plural of phototropism; the growth or movement of organisms or parts of organisms in response to light.
Usage: biology; typically used in scientific or educational contexts
Examples
- Plant phototropisms allow seedlings to grow toward sunlight for better photosynthesis.
- The researchers studied various phototropisms in different plant species.
- Phototropisms in fungi help them locate light sources in dark environments.
- Students observed phototropisms when they grew bean plants near a window.
- The mechanisms of phototropisms involve specialized light-sensing proteins in plant cells.