/ Dictionary / Index T Thomson's gazelle: Meaning and Definition of Find definitions for: Thom'son's gazelle' Pronunciation: [key] a medium-sized antelope, Gazella thomsoni, abundant on the grassy steppes and dry bush of the East African plains. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Thomson effect Thon Buri Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language