quinone diimine
noun
quinone di·imine
| \ -ˈdīəˌmēn\
Definition of quinone diimine
1
: a colorless crystalline compound HN=C6H4=NH regarded as derived from quinone (see quinone sense 1a) by replacement of both oxygen atoms by imino groups but made by oxidation of para-phenylenediamine
— called also p-benzoquinone diimine, p-quinone diimine
2
: a compound derived from a quinone by replacement of both oxygen atoms by imino groups
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