/ Dictionary / Index I Indus valley civilization: Meaning and Definition of Find definitions for: In'dus val'ley civiliza"tion Pronunciation: [key] an ancient civilization that flourished in the Indus River valley, from about 2500 to 1500 b.c.: extensive archaeological excavations at the main sites of Mohenjo-Daro and Harappa in Pakistan. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. industrywide indwell Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language