Plaice

n.
  1. A European food fish (Pleuronectes platessa), allied to the flounder, and growing to the weight of eight or ten pounds or more.
  2. A large American flounder (Paralichthys dentatus; called also brail, puckermouth, and summer flounder. The name is sometimes applied to other allied species.
    3. Plaice mouth ,
    a mouth like that of a plaice; a small or wry mouth.