English word thermostat comes from English thermo- (Heat.), English -stat
| Dictionary entry | Language | Definition |
|---|---|---|
| thermo- | English (eng) | Heat. |
| -stat | English (eng) | Forming nouns naming scientific instruments that act to render the prefixed element stationary or static in some respect. |
| thermostat | English (eng) | A device that automatically responds to changes in temperature by activating a heating or cooling system to maintain the temperature at a desired setting. |