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
CBS News, 11 Apr. 2026
Others were forced to choose between food, medicine and warmth, with some turning their thermostats down to 60 degrees and bundling up or coming out of retirement to take part-time jobs.
—Margie Mason, Los Angeles Times, 11 Apr. 2026
Sensi Smart Thermostat Deal This older Sensi smart thermostat is a reliable piece of tech that still performs well.
—K. Thor Jensen, PC Magazine, 10 Apr. 2026
Others were forced to choose between food, medicine and warmth, with some turning their thermostats down to 60 degrees and bundling up or coming out of retirement to take part-time jobs.
—ABC News, 9 Apr. 2026
See All Example Sentences for thermostat
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Noun
Others were forced to choose between food, medicine, and warmth, with some turning their thermostats down to 60 degrees and bundling up or coming out of retirement to take part-time jobs.
—CBS News, 11 Apr. 2026
Others were forced to choose between food, medicine and warmth, with some turning their thermostats down to 60 degrees and bundling up or coming out of retirement to take part-time jobs.
—Margie Mason, Los Angeles Times, 11 Apr. 2026
Sensi Smart Thermostat Deal This older Sensi smart thermostat is a reliable piece of tech that still performs well.
—K. Thor Jensen, PC Magazine, 10 Apr. 2026
Others were forced to choose between food, medicine and warmth, with some turning their thermostats down to 60 degrees and bundling up or coming out of retirement to take part-time jobs.
—ABC News, 9 Apr. 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 19 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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