the positive, or negative, attraction of a plant or sessile animal toward, or away from, a stimulus, as in the turning of a sunflower toward the light
Origin of tropism; from -tropism
Origin of -tropism; from -trop(e) + -ism
Origin of -tropismFrom Greek trop&emacron;, a turning; see –tropic.
The turning or bending movement of an organism or a part of an organism in a particular direction in response to an external stimulus such as light or gravity.
Origin of tropismFrom –tropism.
- tro′pic, tro·pis′tic