I. ˈthərməˌstat, ˈthə̄m-, ˈthəim-, usu -ad.+V noun
( -s )
Etymology: therm- + -stat
1.
a. : an automatic device for regulating temperature (as by opening or closing the damper of a heating furnace or by regulating supply of gas) and commonly utilizing either the differential expansion of solids or the vapor pressure of liquids
b. : a similar device especially for actuating fire or low-temperature alarms or for controlling automatic sprinklers
2. : a piece of apparatus (as a constant-temperature chamber) regulated by a thermostat
II. transitive verb
( thermostated or thermostatted ; thermostated or thermostatted ; thermostating or thermostatting ; thermostats )
: to provide with or control by a thermostat
a thermostated heating system