follow Dictionary.com

Write a Super Short Story to win an iPod!

shale

[sheyl] /ʃeɪl/
noun
1.
a rock of fissile or laminated structure formed by the consolidation of clay or argillaceous material.
Origin
1740-1750
1740-50; origin uncertain; compare obsolete shale to split (said of stone), to shell, derivative of shale shell, husk, Old English scealu shell, husk; see scale2
Related forms
shalelike, shaley, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for shaley

shale

/ʃeɪl/
noun
1.
a dark fine-grained laminated sedimentary rock formed by compression of successive layers of clay-rich sediment
Derived Forms
shaly, adjective
Word Origin
Old English scealushell; compare German Schalstein laminated limestone; see scale1, scale²
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 Origin and History for shaley

shale

n.

1747, possibly a specialized use of Middle English schale "shell, husk, pod" (late 14c.), also "fish scale," from Old English scealu (see shell (n.)) in its base sense of "thing that divides or separate," in reference to the way the rock breaks apart in layers. Cf. Middle English sheel "to shell, to take off the outer husk" (late 15c.). Geological use also possibly influenced by German Schalstein "laminated limestone," and Schalgebirge "layer of stone in stratified rock."

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
shaley in Science
shale
  (shāl)   
A fine-grained sedimentary rock consisting of compacted and hardened clay, silt, or mud. Shale forms in many distinct layers and splits easily into thin sheets or slabs. It varies in color from black or gray to brown or red.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
shaley in Culture

shale definition


A sedimentary rock formed from layers of clay.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for shale

All English speakers likely know this word

Word Value for shaley

0
11
Scrabble Words With Friends

Nearby words for shaley