Definition of methylaniline in US English:

methylaniline

noun

Chemistry
  • An aniline derivative, C₆H₅NHCH₃, that is methylated on the nitrogen atom and that is a basic, colourless liquid that turns brown on exposure to air.

Origin

Mid 19th century; earliest use found in Philosophical Transactions of the Royal Society of London. From methyl + aniline, after German Methylanilin.