iapetus iao • Iapetus · · · Info · Definitions · Characters · · iapetus · · Text Latin · · Script 7 · · Length 4 · · Syllables Definitions · · · (noun) (Greek mythology) the Titan who was father of Atlas and Epimetheus and Prometheus in ancient mythology. Synonyms: Iapetus. · · Noun Definition 1 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 i latin small letter i U+0069 p latin small letter p U+0070 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075