What does thermocouple mean?
• THERMOCOUPLE (noun) The noun THERMOCOUPLE has 1 sense: 1. a kind of thermometer consisting of two wires of different metals that are joined at both ends; one junction is at the temperature to be measured and the other is held at a fixed lower temperature; the current generated in the circuit is proportional to the temperature difference Familiarity information: THERMOCOUPLE used as a noun is very rare.