noun
thermocouple
Technical term for a temperature sensor made of two dissimilar metals. Used in engineering and physics contexts.
熱電対を使って炉の温度を測定する。
Measure the furnace temperature using a thermocouple.
Compound of 熱 (heat) + 電 (electricity) + 対 (pair), referring to the pair of dissimilar metals that generate a voltage from a temperature difference.