rosanilinePronunciation: /rə(ʊ)ˈzanɪliːn, -lɪn, -lʌɪn/Definition of rosaniline noun [mass noun] Chemistry a reddish-brown synthetic compound which is a base used in making a number of red dyes, notably fuchsin. A triphenylmethane derivative; chemical formula: C20H19N3 Origin: mid 19th century: from rose1 + anilinerosaniline in other Oxford dictionaries Definition of rosaniline in the US English dictionary
