D defs.my
Entry 1 sense Webster, 1913

Flatfish

/flăt'-fĭshˌ/ · Flat·fish · IPA /ˈflætfɪʃ/
01 n. Any fish of the family Pleuronectidæ; esp., the winter flounder (Pleuronectes Americanus). The flatfishes have the body flattened, swim on …
  1. 1.
    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.(Zool.) See: Flounder