The Collaborative International Dictionary
Thermocurrent
Thermocurrent \Ther"mo*cur`rent\, n. [Thermo- + current.] (Physics) A current developed or set in motion by heat; specif., an electric current, in a heterogeneous circuit, due to differences of temperature between the junctions of the substances of which the circuit is composed.
Wiktionary
thermocurrent
n. A current, as of electricity, developed or set in motion by the action of heat.