noun pho·las \ˈfōləs\

Definition of pholas

  1. 1 capitalized :  a large genus of bivalve usually marine mollusks (family Pholadidae) with an elongate-oval rough shell having no hinge ligament, gaping at the end, and having two accessory valves to protect the dorsal margin that with the foot serves as a rasp to bore in wood and stone

  2. 2 plural pholades \-ləˌdēz\ :  any mollusk of the genus Pholas or of the family Pholadidae :  piddock

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Origin and Etymology of pholas

New Latin, from Greek phōlas stone-boring mollusk, literally, lying in a hole; akin to Greek phylē tribe, clan — more at physic

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to criticize severely

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