Quin·al·dine n.  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.]
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  Chin·al·dine n.  Chem. See Quinaldine.
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