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Meaning of flatfish

flat•fish

Pronunciation: (flat'fish"), [key]
— pl. -fish, -fish•es.
  1. any fish of the order Heterosomata (Pleuronectiformes), including the halibut, sole, flounder, etc., having a greatly compressed body and swimming on one side, with both eyes on the upper side in the adult.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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