/ Dictionary / Index A activated mine: Meaning and Definition of Find definitions for: ac'tivated mine' Pronunciation: [key] a mine with a secondary fuze designed to explode if the mine is tampered with. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. activated carbon activated sludge Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language