- a thermostat for high temperatures.
- a safety device that, when a fire breaks out in its vicinity, automatically causes a mechanism to sound a warning alarm.
Origin of pyrostat
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a device that activates an alarm or extinguisher in the event of a fire
- a thermostat for use at high temperatures