/ Dictionary / Index E extermine: Meaning and Definition of Find definitions for: ex•ter•mine Pronunciation: (ik-stûr'min), [key] — -mined, -min•ing. to exterminate. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. exterminatory extern Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language