Noun | 1. | family Pleuronectidae - righteye flounders fish family - any of various families of fish Heterosomata, order Heterosomata, order Pleuronectiformes - flatfishes: halibut; sole; flounder; plaice; turbot; tonguefishes righteye flounder, righteyed flounder - flounders with both eyes on the right side of the head genus Pleuronectes, Pleuronectes - type genus of the Pleuronectidae genus Platichthys, Platichthys - a genus of Pleuronectidae genus Limanda, Limanda - a genus of Pleuronectidae; righteye flounders having a humped nose and small scales; the underside is often brightly colored genus Pseudopleuronectes, Pseudopleuronectes - a genus of Pleuronectidae genus Microstomus, Microstomus - a genus of Pleuronectidae genus Hippoglossoides, Hippoglossoides - a genus of Pleuronectidae genus Hippoglossus, Hippoglossus - halibuts |