Try Our Apps


The Best Internet Slang

wall rock

noun, Mining.
the rock forming the walls of a vein.
Origin of wall rock
An Americanism dating back to 1855-60 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
Examples from the Web for wall rock
Historical Examples
  • In igneous rock the ore-bearing solutions may have altered the wall rock to a dense mixture of quartz, sericite, and chlorite.

  • Their principal occurrence is in distinct fissure veins in igneous rocks, with more or less replacement of the wall rock.

  • The ore fills fissures to some extent, but is mainly a replacement of the wall rock.

British Dictionary definitions for wall rock

wall rock

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
Cite This Source

Word of the Day

Difficulty index for wall rock

Few English speakers likely know this word

Word Value for wall

Scrabble Words With Friends

Nearby words for wall rock