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piddock

American  
[pid-uhk] / ˈpɪd ək /

noun

  1. any bivalve mollusk of the genus Pholas or the family Pholadidae, having long, ovate shells and burrowing in soft rock, wood, etc.

piddock British  
/ ˈpɪdək /

noun

  1. any marine bivalve of the family Pholadidae, boring into rock, clay, or wood by means of sawlike shell valves See also shipworm

"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

Etymology

Origin of piddock

1850–55; perhaps akin to Old English puduc wart

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.