n. pl. flounder or floun·ders Any of various marine flatfishes chiefly of the families Bothidae and Pleuronectidae, including several important food fishes. [Middle English, from Anglo-Norman floundre, of Scandinavian origin; see plat- in the Appendix of Indo-European roots.] ![]() (click for a larger image) flounder2peacock flounder Bothus mancus |
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