The Collaborative International Dictionary
Thermotropic
Thermotropic \Ther`mo*trop"ic\, a. (Bot.) Manifesting thermotropism.
Wiktionary
thermotropic
a. 1 (context biology of a plant English) Tending to move towards or away from a source of heat 2 (context physics of a liquid crystal English) Exhibiting different phases at different temperatures
Usage examples of "thermotropic".
A certain species of thermotropic eel-like creature nearly two meters long had biologists almost coming to blows over its taxonomy.
And those plant-things are thermotropic, they respond to heat radiations.