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
Emily Williams, Better Homes & Gardens, 7 Feb. 2025
Many of the walls, doors, and mirrors appeared to have substances smeared across them, the thermostat was changed to 50 degrees, and the back door was left open.
—Kristan Hawkins, Newsweek, 6 Feb. 2025
And thanks to the smart zone dampener system and individual thermostats in each room, everyone can set their preferred temperature—no more fighting over the hallway thermostat!
—Cece Lesesne, Southern Living, 29 Jan. 2025
Think of the cruise control in a car, which keeps its speed constant, or the thermostat in a house that regulates temperature.
—Raúl Ordóñez, The Conversation, 28 Jan. 2025
See all Example Sentences for thermostat 
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Noun
Kelly also strongly suggests checking with the hotel staff before changing the thermostat in your room.
—Emily Williams, Better Homes & Gardens, 7 Feb. 2025
Many of the walls, doors, and mirrors appeared to have substances smeared across them, the thermostat was changed to 50 degrees, and the back door was left open.
—Kristan Hawkins, Newsweek, 6 Feb. 2025
And thanks to the smart zone dampener system and individual thermostats in each room, everyone can set their preferred temperature—no more fighting over the hallway thermostat!
—Cece Lesesne, Southern Living, 29 Jan. 2025
Think of the cruise control in a car, which keeps its speed constant, or the thermostat in a house that regulates temperature.
—Raúl Ordóñez, The Conversation, 28 Jan. 2025
See all Example Sentences for thermostat
Dictionary Entries Near thermostat
Cite this Entry
“Thermostat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thermostat. Accessed 16 Feb. 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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