Plaice (?), n. [F. plaise, plais, prob. fr. L. platessa flatish, plaice. See Place.] Zool. (a)
A European food fish (Pleuronectes platessa), allied to the flounder, and growing to the weight of eight or ten pounds or more.
A large American flounder (Paralichthys dentatus; called also brail, puckermouth, and summer flounder. The name is sometimes applied to other allied species.
[Written also plaise
Plaice mouth, a mouth like that of a plaice; a small or wry mouth. [R.]
© Webster 1913.