thermostat

1 of 2

noun

ther·​mo·​stat ˈthər-mə-ˌstat How to pronounce thermostat (audio)
: 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
thermostatic adjective
thermostatically adverb

thermostat

2 of 2

verb

thermostated ˈthər-mə-ˌsta-təd How to pronounce thermostat (audio) also thermostatted; thermostating also thermostatting

transitive verb

: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Trillions of data points are produced by everyday devices, such as smart home security systems, light bulbs and thermostats—and new devices are being released all the time. Mark Mahle, Forbes, 4 Dec. 2024 The energy giant suggests setting your thermostat to 68 degrees in the winter, and turning it down a few degrees while sleeping, to save about 10% on your heating bill. Elissa Robinson, Detroit Free Press, 4 Dec. 2024 These include lighting, thermostats, locks, robot vacuums, refrigerators, dishwashers, dryers, ovens, smoke alarms, air quality monitors, EV chargers, and more. Jennifer Pattison Tuohy, The Verge, 3 Dec. 2024 Google Nest Smart Programmable Wi-Fi Thermostat Google Nest Smart Programmable Wi-Fi Thermostat Save $45 on the classic Google Nest thermostat to keep your home at the perfect temp at all times. Kasey Caminiti, USA TODAY, 28 Nov. 2024 See all Example Sentences for thermostat 

Word History

Etymology

Noun

thermo- + -stat

First Known Use

Noun

1831, in the meaning defined above

Verb

1924, in the meaning defined above

Time Traveler
The first known use of thermostat was in 1831

Dictionary Entries Near thermostat

Cite this Entry

“Thermostat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thermostat. Accessed 15 Dec. 2024.

Kids Definition

thermostat

noun
ther·​mo·​stat
ˈthər-mə-ˌstat
: a device that automatically controls temperature
thermostatic
ˌthər-mə-ˈstat-ik
adjective
thermostatically
-i-k(ə-)lē
adverb

Medical Definition

thermostat

1 of 2 noun
ther·​mo·​stat ˈthər-mə-ˌstat How to pronounce thermostat (audio)
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
thermostatic adjective
thermostatically adverb

thermostat

2 of 2 transitive verb
thermostated -ˌstat-əd How to pronounce thermostat (audio) 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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!