Pronunciation: ' th ə r-m ə - ˌ stat
Function: noun
Date: 1831
: 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
– ther · mo · stat · ic \ ˌ th ə r-m ə - ' sta-tik \ adjective
– ther · mo · stat · i · cal · ly \ -ti-k( ə -)l ē \ adverb