IPA: /ˌθɜːrməˈtrɒpɪk/
KK: /ˌθɜrməˈtrɒpɪk/
Describing a substance that changes its properties or behavior in response to temperature changes.
The thermotropic material changes its shape when heated.
Thermotropic is formed from "thermo-" (from Greek "thermos", meaning heat) and "tropic" (from Greek "tropos", meaning turning or change). The word describes the ability of an organism or material to respond to changes in temperature, essentially turning or changing in response to heat.
Think of 'heat' ('thermo-') causing something to 'turn' or 'change' ('tropic') — that's what thermotropic means.