Miocene miocardia • Miocenic · · · Info · Definitions · Characters · · Miocene · · Text Latin · · Script 7 · · Length Definitions · · · (noun) from 25 million to 13 million years ago; appearance of grazing mammals. Synonyms: Miocene epoch. · · Noun Definition 1 Characters · · M latin capital letter m U+004D c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F