plaice

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A large edible marine flatfish (Pleuronectes platessa) of western European waters.
2. n. Any of various flatfishes, such as Hippoglossoides platessoides of North American Atlantic waters, related to the plaice.

Century Dictionary and Cyclopedia

1. n. A fish of the family Pleuronectidæ and genus Pleuronectes, P. platessa. It is a well-known British food-fish, not found in American waters, growing to a weight of 8 or 10 pounds. See also cut under asymmetry.
2. n. Hence, by extension, any one of various flatfishes or flounders of the family Pleuronectidæ. Citharichthys sordidus is a plaice common along the Pacific coast of America. Rhomboidichthys lunatus is a Bermuda plaice. The smooth plaice, or smooth-backed flounder, is Pleuronectes glaber.

Wiktionary

1. n. The large marine flatfish, Pleuronectes platessa, commonly found in the North Sea and Irish Sea, with smooth brown skin and red or orange spots.
2. n. The flatfish, Hippoglossoides platessoides, of the North American Atlantic; American plaice.

GNU Webster's 1913

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

WordNet 3.0

1. n. large European food fish
2. n. flesh of large European flatfish