rock salt

Origin of rock salt

First recorded in 1700–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for rock-salt

Historical Examples of rock-salt


British Dictionary definitions for rock-salt

rock salt

noun
  1. another name for halite
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

Word Origin and History for rock-salt
n.

1707, from rock (n.1) + salt (n.).

Online Etymology Dictionary, © 2010 Douglas Harper