a device that measures and controls the temperature of a machine or room, by switching the heating or cooling system on and off as necessary
NAmE//ˌθərməˈstæt̮ɪk//
adjective [only before noun] thermostatic control NAmE//ˌθərməˈstæt̮ɪkli//
adverb The oven is thermostatically controlled.See thermostat in the Oxford Advanced Learner's DictionaryCheck pronunciation: thermostat