- 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.
- to equip or control with a thermostat.
Origin of thermostat
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for thermostatic
The automatic iron has what is called a thermostatic control which holds the temperature of the iron at the heat you want.Electricity for the 4-H Scientist
Eric B. Wilson
This is accomplished by means of a thermostatic bar made of plates of brass and vulcanite fastened together.
Fig. 69 shows a thermostatic control valve attached to the bottom of a heater coil, and at the side of storage tank.Elements of Plumbing
It probably wouldn't be noticed that the torn and blood-spattered clothes on the corpse were not thermostatic.The Standardized Man
- 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
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
Word Origin and History for thermostatic
Online Etymology Dictionary, © 2010 Douglas Harper
- 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.
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.