Webster’s Revised Unabridged Dictionary · 1913
Quinaldine
Quin·al′dine (kwĭn·ăl′dĭn or ·dēn), n. [Quinoline + aldehyde + aniline.] (Chem.) A colorless liquid of a slightly pungent odor, C9H6N.CH3, first obtained as a condensation product of aldehyde and aniline, and regarded as a derivative of quinoline; — called also methyl quinoline. [Written also chinaldine.]