breccia[brec̸h′ē ə, bres̸h′-]
breccia definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
rock consisting of sharp-cornered bits of fragmented rock, cemented together by sand, clay, or lime
Origin: Italian fragments of stone ; from French brèche: see brash
breccia definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Rock composed of sharp-angled fragments embedded in a fine-grained matrix.
Origin: Italian, of Germanic origin; see bhreg- in Indo-European roots.
breccia - Science Definition
A rock composed of angular fragments embedded in a fine-grained matrix. Breccias form from explosive volcanic ejections, the compaction of talus, or plate tectonic processes. Breccias are different from conglomerates in that the fragments they contain are angular instead of rounded.