Definition of naphthoquinone in English:

naphthoquinone

(also naphthaquinone, napthaquinone)

noun

Chemistry
  • Each of six isomeric compounds, C ₁₀ H ₆ O ₂, notionally obtained by replacing two of the ≧CH groups of naphthalene by carbonyl groups; specifically (more fully "1,4-naphthoquinone", "α-naphthoquinone") a volatile yellow solid whose molecule forms part of the structure of vitamin K.

Origin

Late 19th century; earliest use found in Journal of the Chemical Society. From naphtha + -o- + quinone.

Pronunciation

naphthoquinone

/ˌnafθəʊˈkwɪnəʊn/ /ˌnapθəʊˈkwɪnəʊn/