thermostat

[ thur-muh-stat ]
/ ˈθɜr məˌstæt /

noun

a device, including a relay actuated by thermal conduction or convection, that functions to establish and maintain a desired temperature automatically or signals a change in temperature for manual adjustment.

verb (used with object), ther·mo·stat·ted or ther·mo·stat·ed; ther·mo·stat·ting or ther·mo·stat·ing.

to equip or control with a thermostat.

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Origin of thermostat

First recorded in 1825–35; thermo- + -stat

OTHER WORDS FROM thermostat

ther·mo·stat·ic, adjectivether·mo·stat·i·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for thermostat

British Dictionary definitions for thermostat

thermostat
/ (ˈθɜːməˌstæt) /

noun

a device that maintains a system at a constant temperature. It often consists of a bimetallic strip that bends as it expands and contracts with temperature, thus breaking and making contact with an electrical power supply
a similar device that actuates equipment, such as a sprinkler, when a certain temperature is reached

Derived forms of thermostat

thermostatic, adjectivethermostatically, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for thermostat

thermostat
[ thûrmə-stăt′ ]

A device that automatically controls heating or cooling equipment in such a way as to maintain a temperature at a constant level or within a specified range, generally using a thermometer capable of triggering electrical switches that activate or deactivate the equipment.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Cultural definitions for thermostat

thermostat

A device that monitors and automatically responds to changes in temperature and activates switches controlling devices such as furnaces or air conditioners.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.