Definition of coumarone in English:

coumarone

Line breaks: cou|ma¦rone
Pronunciation: /ˈkuːmərəʊn
 
/

noun

[mass noun] Chemistry
An organic compound present in coal tar, used to make thermoplastic resins for paints and varnishes.
  • A bicyclic compound with fused benzene and furan rings; chemical formula: C8H6O

Origin

late 19th century: from coumarin + -one.

Definition of coumarone in:

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Word of the day hubris
Pronunciation: ˈhjuːbrɪs
noun
excessive pride or self-confidence