wall rock

Origin of wall rock

An Americanism dating back to 1855–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for wall rock

Historical Examples of wall rock


British Dictionary definitions for wall rock

wall rock

noun
  1. rock that is immediately adjacent to a mineral vein, fault, or igneous intrusion
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