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English definition of “thermostat”

thermostat

noun [C] uk   /ˈθɜː.mə.stæt/ us    /ˈθɝː-/
a device that keeps a building, engine, etc. within a limited temperature range by automatically switching the supply of heat on and off: a central heating thermostatHeaters and burners
(Definition of thermostat from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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