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thermocouple
OXFORD DICTIONARY
thermocouple, n. a pair of different metals in contact at a point, generating a thermoelectric voltage that can serve as a measure of temperature at this point relative to their other parts.
ROGET THESAURUS
thermocouple
Thermometer
N thermometer, thermometrograph, mercury thermometer, alcohol thermometer, clinical thermometer, dry-bulb thermometer, wet-bulb thermometer, Anschutz thermometer, gas thermometer, telethermometer, color-changing temperature indicator, thermopile, thermoscope, pyrometer, calorimeter, bomb calorimeter, thermistor, thermocouple, thermostat, thermoregulator, (3) Taste.For further exploring for "thermocouple" in Webster Dictionary Online