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
Bellamy Richardson, wsj.com, 17 Nov. 2023
This handsome sweater vest is a good lightweight layer to wear at home and to keep you warm on chilly days without the need to turn up the thermostat.
—Jeanette Marantos, Los Angeles Times, 1 Nov. 2023
And now through November 5th, Verge readers can get $75 off the thermostat with code NLTVERGE75.
—Brandon Widder, The Verge, 26 Oct. 2023
In Florida, sea-level rise is worsening the risks of high-tide flooding and storm surge from hurricanes, in addition to turning up the thermostat on already humid heat.
—Smithsonian Magazine, 13 Sep. 2023
Tawni Eckley, a fourth-grade teacher in Loveland, Colorado, returned to her unconditioned classroom in a brick school building this week and a thermostat that on Thursday read 84 degrees.
—Daniella Silva, NBC News, 19 Aug. 2023
Despite being a top-tier Matter member, Resideo still hasn’t adopted Matter in its products, such as the Honeywell Home T9 thermostat.
—Jennifer Pattison Tuohy, The Verge, 23 Oct. 2023
Even in Japan, not all buildings are cooled equally: Shops and restaurants tend to keep their thermostats low to ensure their customers’ comfort.
—Hisako Ueno, New York Times, 24 Sep. 2023
Last election, there was a report of a would-be president who wanted his hotel thermostat dropped to a near-arctic 60°.
—Jason Gay, WSJ, 22 Sep. 2023
See More
Noun
Plus, our top pick for the best smart thermostat is on sale.
—Bellamy Richardson, wsj.com, 17 Nov. 2023
This handsome sweater vest is a good lightweight layer to wear at home and to keep you warm on chilly days without the need to turn up the thermostat.
—Jeanette Marantos, Los Angeles Times, 1 Nov. 2023
And now through November 5th, Verge readers can get $75 off the thermostat with code NLTVERGE75.
—Brandon Widder, The Verge, 26 Oct. 2023
In Florida, sea-level rise is worsening the risks of high-tide flooding and storm surge from hurricanes, in addition to turning up the thermostat on already humid heat.
—Smithsonian Magazine, 13 Sep. 2023
Tawni Eckley, a fourth-grade teacher in Loveland, Colorado, returned to her unconditioned classroom in a brick school building this week and a thermostat that on Thursday read 84 degrees.
—Daniella Silva, NBC News, 19 Aug. 2023
Despite being a top-tier Matter member, Resideo still hasn’t adopted Matter in its products, such as the Honeywell Home T9 thermostat.
—Jennifer Pattison Tuohy, The Verge, 23 Oct. 2023
Even in Japan, not all buildings are cooled equally: Shops and restaurants tend to keep their thermostats low to ensure their customers’ comfort.
—Hisako Ueno, New York Times, 24 Sep. 2023
Last election, there was a report of a would-be president who wanted his hotel thermostat dropped to a near-arctic 60°.
—Jason Gay, WSJ, 22 Sep. 2023
See More
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'thermostat.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Word History
Dictionary Entries Near thermostat
Cite this Entry
“Thermostat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thermostat. Accessed 1 Dec. 2023.
Copy Citation
Kids Definition
thermostat
noun
ther·mo·stat
ˈthər-mə-ˌstat
: a device that automatically controls temperature
thermostatic
adjective
ˌthər-mə-ˈstat-ik
thermostatically
adverb
-i-k(ə-)lē
Medical 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
More from Merriam-Webster on thermostat
Nglish: Translation of thermostat for Spanish Speakers
Britannica.com: Encyclopedia article about thermostat
Love words? Need even more definitions?
Merriam-Webster unabridged
Share