Heterosomata heterosis • Heterosomati · · · Info · Definitions · Characters · · Heterosomata · · Text Latin · · Script 12 · · Length Definitions · · · (noun) flatfishes: halibut; sole; flounder; plaice; turbot; tonguefishes. Synonyms: order Heterosomata, order Pleuronectiformes. · · Noun Definition 1 Characters · · H latin capital letter h U+0048 a latin small letter a U+0061 e latin small letter e U+0065 m latin small letter m U+006D o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074