ther·mo·stat
ˈthər-mə-ˌstat 
: an automatic device for regulating temperature (as by controlling the supply of gas or electricity to a heating apparatus)
also
: a similar device for actuating fire alarms or for controlling automatic sprinklers
thermostated
ˈthər-mə-ˌsta-təd
also thermostatted; thermostating also thermostatting
also thermostatted; thermostating also thermostatting
: to provide with or control the temperature of by a thermostat
Examples of thermostat in a Sentence
Noun
I set the thermostat to 68 degrees.
Recent Examples on the Web
Condé Nast, Condé Nast Traveler, 31 Mar. 2026
Smart thermostats, easy to install and in some cases costing under a hundred bucks, can pay for themselves in a matter of months by automatically managing temperatures.
—The Editorial Board, Chicago Tribune, 30 Mar. 2026
Virtual power plants already coordinate millions of residential devices — thermostats, water heaters, home batteries — to shift consumption during peak hours~~, providing gigawatts of dispatchable capacity~~.
—Brian Barlow, Fortune, 28 Mar. 2026
Like, cool, got the game, but now the TV feels small, and suddenly the thermostat situation is bothering you, too.
—Juhi Wadia, PC Magazine, 24 Mar. 2026
See All Example Sentences for thermostat
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Noun
Accessibility Four Seasons Minneapolis offers ten accessible guest rooms in all, each with wider, wheelchair accessible doors and lighting controls and thermostats within reach.
—Condé Nast, Condé Nast Traveler, 31 Mar. 2026
Smart thermostats, easy to install and in some cases costing under a hundred bucks, can pay for themselves in a matter of months by automatically managing temperatures.
—The Editorial Board, Chicago Tribune, 30 Mar. 2026
Virtual power plants already coordinate millions of residential devices — thermostats, water heaters, home batteries — to shift consumption during peak hours~~, providing gigawatts of dispatchable capacity~~.
—Brian Barlow, Fortune, 28 Mar. 2026
Like, cool, got the game, but now the TV feels small, and suddenly the thermostat situation is bothering you, too.
—Juhi Wadia, PC Magazine, 24 Mar. 2026
See All Example Sentences for thermostat
Cite this Entry
“Thermostat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thermostat. Accessed 2 Apr. 2026.
Copy CitationMedical Definition
thermostat
1 of 2 noun
ther·mo·stat
ˈthər-mə-ˌstat
1
: an automatic device for regulating temperature (as by controlling the supply of gas or electricity to a heating apparatus)
2
: a piece of apparatus (as a constant-temperature chamber) regulated by a thermostat
thermostat
2 of 2 transitive verb
thermostated
-ˌstat-əd
or thermostatted; thermostating or thermostatting
or thermostatted; thermostating or thermostatting
: to provide with or control the temperature of by a thermostat
a thermostated centrifuge
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