Main Entry: ¹ther·mo·stat

Pronunciation: \ˈthər-mə-ˌstat\

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 \ˌthər-mə-ˈsta-tik\ adjective

— ther·mo·stat·i·cal·ly \-ti-k(ə-)lē\ adverb