- a wall for holding in place a mass of earth or the like, as at the edge of a terrace or excavation.
Origin of retaining wall
First recorded in 1830–40
Also called breast wall.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for retaining wall
The retaining-wall and pit plant here given include that used on the principal contract and terminal power station only.
The retaining-wall plant was identical with that described for the first period, with the addition of two Ransome 1-cu.
They could see the colonnade of its old eucalyptus trees, above the retaining-wall of granite.Shadows of Flames
- a wall constructed to hold back earth, loose rock, etcAlso called: revetment
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