Dictionary.com

gravity dam

noun

a dam resisting the pressure of impounded water through its own weight.

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Origin of gravity dam

First recorded in 1935–40

Words nearby gravity dam

gravitropism, gravity, gravity assist, gravity cell, gravity clock, gravity dam, gravity escapement, gravity fault, gravity feed, gravity hinge, gravity meter
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for gravity dam

gravity dam

noun

a dam whose weight alone is great enough to prevent it from tipping over
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012