noun \ˈflan-dər\

: a type of fish that has a flat body and that is eaten as food

plural flounder or flounders

Full Definition of FLOUNDER

:  flatfish; especially :  a marine fish of either of two families (Pleuronectidae and Bothidae) that include important food fishes

Origin of FLOUNDER

Middle English, of Scandinavian origin; akin to Norwegian flundra flounder
First Known Use: 15th century

Other Fishes Terms

char, chum, ichthyology, smelt, tetra, turbot



: to move in an awkward way with a lot of difficulty and effort

: to be unsure about what to do or say

: to have a lot of problems and difficulties

floun·deredfloun·der·ing \-d(ə-)riŋ\

Full Definition of FLOUNDER

intransitive verb
:  to struggle to move or obtain footing :  thrash about wildly
:  to proceed or act clumsily or ineffectually

Examples of FLOUNDER

  1. The horses were floundering through the deep snow.
  2. He was floundering around in the pool like an amateur.
  3. After watching me flounder for a few minutes, my instructor took over.

Origin of FLOUNDER

probably alteration of founder
First Known Use: 1592


noun    (Concise Encyclopedia)

Flounder (Platichthys)—F. Greenaway—Natural History Photographic Agency/EB Inc.

Any of about 300 species of flatfishes (order Pleuronectiformes). When born, the flounder is bilaterally symmetrical, with an eye on each side, and it swims near the sea's surface. After a few days, it begins to lean to one side, and the eye on that side migrates to what eventually becomes the top side. With this development comes changes in bones, nerves, and muscles, and the underside loses its colour. As an adult, the flounder lives on the sea bottom with the eyed side on top.


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