Try Our Apps


Supposedly vs. Supposably

clay stone

or claystone

noun, Geology
Origin of clay stone
1770-80 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the Web for claystone
Historical Examples
  • Why should the schist pendant of the Tappock chamber be all right, if the claystone pendant of Dunbuie be all wrong?

    The Clyde Mystery Andrew Lang
  • We see them light their claystone pipes, and send forth clouds of blue vapour.

    The Scalp Hunters Mayne Reid
  • But there was more; close by the stone I noticed (although I think you didn't) a mark in the claystone.

    Chronicles of Martin Hewitt Arthur Morrison
British Dictionary definitions for claystone


a compact very fine-grained rock consisting of consolidated clay particles
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
claystone in Science
A fine-grained, dark gray to pink sedimentary rock consisting primarily of compacted and hardened clay. Claystone is similar to shale but without laminations.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for clay stone

Few English speakers likely know this word

Word Value for claystone

Scrabble Words With Friends

Nearby words for claystone