Definition of semiquinone in English:

semiquinone

Line breaks: semi|quin¦one
Pronunciation: /ˌsɛmɪˈkwɪnəʊn/

Entry from British & World English dictionary

noun

Chemistry
A compound derived from a quinone, in which one of the two oxygen atoms is ionized or bonded to a hydrogen atom.

Definition of semiquinone in:

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Word of the day apposite
Pronunciation: ˈapəzit
adjective
apt in the circumstances or relation to something