Definify.com
Webster 1913 Edition
Flatfish
Flat′fishˊ
,Noun.
(Zool.)
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
.