/ Dictionary / Index T Thomson effect: Meaning and Definition of Find definitions for: Thom'son effect" Pronunciation: [key] — Physics. Physics. the tendency of unevenly heated segments of a strip of a conductor to increase or decrease in temperature differences when an electric current is passed through the strip. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Thomson Thomson's gazelle Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language