\Pho"las\, n.; pl. {Pholades}. [NL., fr. Gr. ?, ?, a kind
of mollusk.] (Zo["o]l.)
Any one of numerous species of marine bivalve mollusks of the
genus {Pholas}, or family {Pholadid[ae]}. They bore holes for
themselves in clay, peat, and soft rocks.