ascus Ascupart • ascus fruit · · · Info · Definitions · Characters · · ascus · · Text Latin · · Script 5 · · Length 2 · · Syllables Definitions · · · (noun) saclike structure in which ascospores are formed through sexual reproduction of ascomycetes. · · Noun Definition 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 s latin small letter s U+0073 u latin small letter u U+0075