Rubia rubescent • Rubiaceae · · · Info · Definitions · Characters · · Rubia · · Text Latin · · Script 5 · · Length Definitions · · · (noun) type genus of the Rubiaceae; Old World herbs and subshrubs grown for their medicinal properties and for dye substances extracted from their roots. Synonyms: genus Rubia. · · Noun Definition 1 Characters · · R latin capital letter r U+0052 a latin small letter a U+0061 b latin small letter b U+0062 i latin small letter i U+0069 u latin small letter u U+0075