thermocouple
/ˈθɜrmoʊˌkʌpəl/
noun
- A device made of two different metals joined together that measures temperature by producing a small electric voltage when heated.
- A thermocouple in the oven helps maintain the correct baking temperature.
- Scientists attached a thermocouple to the engine to monitor heat during the test.
- The engineer used a thermocouple to check the temperature inside the furnace.