Rosaceae Rosabella • rosacean · · · Info · Definitions · Characters · · Rosaceae · · Text Latin · · Script 8 · · Length Definitions · · · (noun) a large family of dicotyledonous plants of order Rosales; have alternate leaves and five-petaled flowers with numerous stamens. Synonyms: family Rosaceae, rose family. · · Noun Definition 1 Characters · · R latin capital letter r U+0052 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 o latin small letter o U+006F s latin small letter s U+0073