/ Dictionary / Index P Peltier effect: Meaning and Definition of Find definitions for: Pel'tier effect" Pronunciation: (pel'tyā), [key] — Physics. Physics. the change in temperature of either junction of a thermocouple when a current is maintained in the thermocouple and after allowance is made for a temperature change due to resistance. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pelter Peltier heat Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language