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. 2019
Examples from the Web for breast wall
Historical Examples of breast wall
The breast-wall of the whole to be on a line, and to be eighteen inches above ground.The different modes of cultivating the pine-apple
John Claudius Loudon
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