atreus atretic • atria · · · Info · Definitions · Characters · · atreus · · Text Latin · · Script 6 · · Length 3 · · Syllables Definitions · · · (noun) (Greek mythology) the king of Mycenae and father of Agamemnon and of Menelaus. Synonyms: Atreus. · · Noun Definition 1 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075