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The definition of crumbly is made of crumbs, or easily broken into small parts.
An example of something crumbly is a cookie that will not stay in one piece.
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
adjective crumblier, crumbliest
- apt to crumble; easily crumbled
- crumblike; consisting of crumbs or small particles
Used by arrangement with John Wiley & Sons, Inc.
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.
Easily crumbled; friable.