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fiddler crab

noun
  1. any small, burrowing crab of the genus Uca, characterized by one greatly enlarged claw in the male.
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Origin of fiddler crab

An Americanism dating back to 1700–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for fiddler crab

fiddler crab

noun
  1. any of various burrowing crabs of the genus Uca of American coastal regions, the males of which have one of their anterior pincer-like claws very much enlarged
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Word Origin for fiddler crab

C19: referring to the rapid fiddling movement of the enlarged anterior claw of the males, used to attract females
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