1) a dullard (slang, based on flat meaning stupid and fish meaning something to hook or catch)
2) any member of the laterally compressed fishes of the order Pleuronectiformes, which lie flat on the seabed. There are about 678 species in 14 families, the vast majority marine

Dictionary of ichthyology. 2009.

Look at other dictionaries:

  • flatfish — [flat′fish΄] n. pl. flatfish or flatfishes (see FISH) any of an order (Pleuronectiformes) of marine bony fishes, including flounders and soles, having a laterally flattened, asymmetrical body with, as an adult, both eyes and mouth on the upper… …   English World dictionary

  • Flatfish — Flat fish , n. (Zo[ o]l.) Any fish of the family {Pleuronectid[ae]}; 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 …   The Collaborative International Dictionary of English

  • flatfish — 1710, from FLAT (Cf. flat) (adj.) + FISH (Cf. fish) …   Etymology dictionary

  • flatfish — ► NOUN ▪ a marine fish, such as a plaice or sole, that swims on its side with both eyes on the upper side of its flattened body …   English terms dictionary

  • Flatfish — Taxobox name = Flatfish image width = 250px image caption = 19th c. engraving depicting several types of flatfish regnum = Animalia phylum = Chordata classis = Actinopterygii ordo = Pleuronectiformes subdivision ranks = Families subdivision =… …   Wikipedia

  • flatfish — /flat fish /, n., pl. (esp. collectively) flatfish, (esp. referring to two or more kinds or species) flatfishes. any fish of the order Heterosomata (Pleuronectiformes), including the halibut, sole, flounder, etc., having a greatly compressed body …   Universalium

  • flatfish — UK [ˈflætˌfɪʃ] / US noun [countable] Word forms flatfish : singular flatfish plural flatfish a type of sea fish with a thin flat body. Sole and plaice are types of flatfish …   English dictionary

  • flatfish — [[t]flæ̱tfɪʃ[/t]] N VAR (flatfish is both the singular and the plural form.) Flatfish are sea fish with flat wide bodies, for example plaice or sole …   English dictionary

  • flatfish — /ˈflætfɪʃ/ (say flatfish) noun (plural flatfish or flatfishes) any of a group of fishes (often considered as constituting the suborder Heterosomata), including the halibut, flounder, sole, etc., living near the seabed, having a greatly compressed …   Australian English dictionary

  • flatfish — flat|fish [ˈflætˌfıʃ] n plural flatfish a type of sea fish with a thin flat body, such as ↑cod or ↑plaice …   Dictionary of contemporary English

  • flatfish — flat|fish [ flæt,fıʃ ] noun count a type of ocean fish with a thin flat body. Sole and plaice are types of flatfish …   Usage of the words and phrases in modern English

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