an exterior wall finish composed of mortar against which, while still wet, small pebbles have been thrown and pressed in.
Origin of pebble dash
First recorded in 1900–05
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British a finish for external walls consisting of small stones embedded in plaster
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