- any bivalve mollusk of the genus Pholas or the family Pholadidae, having long, ovate shells and burrowing in soft rock, wood, etc.
Origin of piddock
1850–55; perhaps akin to Old English puduc wart
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for piddock
- any marine bivalve of the family Pholadidae, boring into rock, clay, or wood by means of sawlike shell valvesSee also shipworm
C19: origin uncertain