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
Brian Hamilton,
New York Times,
2 July 2026
While rising heating and cooling costs are expensive, some programmable thermostat models cost hundreds of dollars.
—
Melissa Locker,
Southern Living,
30 June 2026
The average temperature Americans keep their thermostats set to is about 71 degrees Fahrenheit during the day and night, according to a national Consumer Reports survey.
—
Swasti Singhai,
USA Today,
30 June 2026
Strickland recommends raising the thermostat by two to four degrees when your fans are running.
—
Louise Parks,
Martha Stewart,
30 June 2026
See All Example Sentences for thermostat
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Noun
Here’s hoping everyone else occupying a leadership position in the league follows the Fever coach’s lead and takes a turn watching the thermostat.
—
Brian Hamilton,
New York Times,
2 July 2026
While rising heating and cooling costs are expensive, some programmable thermostat models cost hundreds of dollars.
—
Melissa Locker,
Southern Living,
30 June 2026
The average temperature Americans keep their thermostats set to is about 71 degrees Fahrenheit during the day and night, according to a national Consumer Reports survey.
—
Swasti Singhai,
USA Today,
30 June 2026
Strickland recommends raising the thermostat by two to four degrees when your fans are running.
—
Louise Parks,
Martha Stewart,
30 June 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 3 Jul. 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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