A fiddler crab.Licensed from iStockPhoto
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
a small, burrowing crab (genus Uca), the male of which has one claw much larger than the other
Used by arrangement with John Wiley & Sons, Inc.
nounThe 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.
Any of various burrowing crabs of the genus Uca of coastal areas, the male of which has a greatly enlarged anterior claw.