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
Frederic Godemel, Forbes.com, 31 July 2025
Is there a magic number for the thermostat that maintains a good balance?
—Alexis Simmerman, Austin American Statesman, 30 July 2025
As the economy tanked under the Biden administration’s failed climate and monetary policies, leading to energy inflation both at the gas pumps and household thermostats, politicians still needed re-election donations.
—Christopher Eric Bouchat, Baltimore Sun, 29 July 2025
Another method utilities use is controlling thermostats.
—Kurt Knutsson, FOXNews.com, 14 July 2025
See All Example Sentences for thermostat
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Noun
From there, businesses can prioritize quick wins, like upgrading to LED lighting, installing smart thermostats or optimizing HVAC systems.
—Frederic Godemel, Forbes.com, 31 July 2025
Is there a magic number for the thermostat that maintains a good balance?
—Alexis Simmerman, Austin American Statesman, 30 July 2025
As the economy tanked under the Biden administration’s failed climate and monetary policies, leading to energy inflation both at the gas pumps and household thermostats, politicians still needed re-election donations.
—Christopher Eric Bouchat, Baltimore Sun, 29 July 2025
Another method utilities use is controlling thermostats.
—Kurt Knutsson, FOXNews.com, 14 July 2025
See All Example Sentences for thermostat
Cite this Entry
“Thermostat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thermostat. Accessed 8 Aug. 2025.
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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