Of, pertaining to, or exhibiting thermoelectricity

(physics) The direct conversion of heat into electricity

By thermoelectric means.

thermoelectric

The study of thermoelectricity

plural of nuclear-thermoelectric rocket

(astronautics) a rocket with a thermal ion engine, whereby the ions are ionized by electricity from a nuclear reactor, and the fluid that is the source of the ions is heated by that nuclear reactor to increase specific impulse.