quinone diimine

noun

quinone di·​imine

-ˈdīəˌmēn

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

Word History

Etymology

diimine from di- + imine

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