Definition of quinonoid in US English:

quinonoid

adjective

Chemistry
  • Of the nature of, resembling, or characteristic of a quinone; having a molecular structure derived from or resembling that of quinone.

noun

Chemistry
  • A quinonoid compound.

Origin

Late 19th century; earliest use found in Chemical News. From quinone + -oid.

Pronunciation

quinonoid

/ˈkwɪnənɔɪd/