thermostat

From thermo- +‎ -stat.

• (General American) IPA^(key): /ˈθɝməstæt/, /ˈθɝmoʊstæt/

• Audio (US):

  (file)

thermostat (plural thermostats)

1. A device that automatically responds to changes in temperature by activating a heating or cooling system to maintain the temperature at a desired setting.
   • 2025 January 1, Jacob Krol, “The best smart thermostats of 2025, tried and tested”, in CNN‎^[1], archived from the original on 15 September 2025:

     A smart thermostat can give you remote control over your heating and air conditioning, making sure your home is as cool or toasty as you like when you get home from work or wherever else, and a great one can monitor environmental conditions and your own preferences over time, adjust your systems to keep you comfortable and save you money.
     That’s why we spent several months testing eight smart thermostats to find the best one for your place.

2. (physics) An algorithm used to maintain a simulated system at a set temperature by absorbing or releasing heat

• thermostatic
• thermostatically

• simmerstat

From thermo- +‎ -stat.

• IPA^(key): /tɛʁ.mɔs.ta/

• Audio (France (Lyon)):

  (file)

thermostat m (plural thermostats)

1. thermostat
2. (cooking) gas mark

• “thermostat”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012

Borrowed from English thermostat.

thermostat m (plural thermostatau, not mutable)

1. thermostat

• thermostatig

• R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “thermostat”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies