'Quinoxaline' definitions:

Definition of 'Quinoxaline'

From: GCIDE

Quinoxaline \Quin*ox"a*line\, n. [Quinoline + glyoxal.] (Chem.) Any one of a series of complex nitrogenous bases obtained by the union of certain aniline derivatives with glyoxal or with certain ketones. [Written also chinoxaline.] [1913 Webster]