FLATFISH
flatfish
(noun) any of several families of fishes having flattened bodies that swim along the sea floor on one side of the body with both eyes on the upper side
flatfish
(noun) sweet lean whitish flesh of any of numerous thin-bodied fish; usually served as thin fillets
Source: WordNet® 3.1
Etymology
Noun
flatfish (countable and uncountable, plural flatfish or flatfishes)
A fish of the order Pleuronectiformes, the adults of which have both eyes on one side and usually swim with the other side down, such as a flounder, a halibut, or a sole.
Synonyms
• pleuronectiform
Hyponyms
• See also flatfish
Source: Wiktionary
Flat"fish`, n. (Zoöl.)
Definition: Any fish of the family Pleuronectidæ; esp., the winter flounder
(Pleuronectes Americanus). The flatfishes have the body flattened,
swim on the side, and have eyes on one side, as the flounder, turbot,
and halibut. See Flounder.
Source: Webster’s Unabridged Dictionary 1913 Edition