单词	coumarone
释义	coumarone /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.
随便看	non-swearing non-swimmer non-syllabic non-synonymous non-tariff non-taster non-teaching non-technical non-technically non-temporal non-theatric non-theatrical non-theism non-theist non-theistic non-thematic non-theorem non-theoretical non-toxic nontraditional non-transferable non-transmission non-transparency non-transparent non-transposing

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