Also found in: Thesaurus.
Related to order Pleuronectiformes: Pleuronectidae
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|Noun||1.||order Pleuronectiformes - flatfishes: halibut; sole; flounder; plaice; turbot; tonguefishes|
animal order - the order of animals
flatfish - any of several families of fishes having flattened bodies that swim along the sea floor on one side of the body with both eyes on the upper side