Medical Dictionary


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noun qui·nox·a·line \kwi-ˈnäk-sə-ˌlēn, -ˌlīn\

Medical Definition of quinoxaline

  1. :  a weakly basic bicyclic compound C8H6N2 made by condensing the ortho form of phenylenediamine with glyoxal and having fused benzene and pyrazine rings; also :  any of various derivatives of quinoxaline having antibiotic properties

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