[ After Jean C. A. Peltier, French physicist, the discoverer. ] (Elec.) The production or absorption of heat at the junction of two metals on the passage of a current. Heat generated by the passage of the current in one direction will be absorbed if the current is reversed. [ Webster 1913 Suppl. ]

(Elec.) A cross formed of two strips of different metals, to illustrate the Peltier effect. [ Webster 1913 Suppl. ]