from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A marine bivalve mollusk of the family Pholadidae, having a long shell with which it bores into wood, rock, and clay, often causing destruction of wharf pilings.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of the bivalve molluscs of the genus Pholas or family Pholadidae, which burrow into soft rocks.
from the GNU version of the Collaborative International Dictionary of English
- n. Any species of Pholas; a pholad. See pholas.
from The Century Dictionary and Cyclopedia
- n. A mollusk of the genus Pholas or family Pholadidæ; especially, a name of those species which are found in British waters, used rarely for food but much for bait, as P. dactylus; a pholad.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. marine bivalve that bores into rock or clay or wood by means of saw-like shells
Origin unknown.(American Heritage® Dictionary of the English Language, Fourth Edition)