noun
- Biology. movement of an organism toward or away from a source of heat.
- Physiology. the regulation of the bodily temperature.
noun
- the directional movement of an organism in response to the stimulus of a source of heat
n. pl. ther•mo•tax•es (-tăk′sēz)
- Movement of a living organism in response to changes in temperature.
- Normal regulation or adjustment of body temperature.