\Ther"mo*cur`rent\, n. (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.

\Ther"mo*cur`rent\, n. [Thermo- + current.]
(Physics)
A current, as of electricity, developed, or set in motion, by
the action of heat.