/ Dictionary / Index G gravity dam: Meaning and Definition of Find definitions for: grav'ity dam" Pronunciation: [key] a dam resisting the pressure of impounded water through its own weight. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. gravity clock gravity escapement Related Content Daily Word Quiz: menagerie Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language