Definition of rosaniline in English:

rosaniline

Syllabification: ros·an·i·line
Pronunciation: /rōˈzanl-in
 
/

noun

Chemistry
  • A reddish-brown synthetic compound that 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 + aniline.

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