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	macro-invertebrate macrolecithal macro lens macrolensing macrolepidoptera macro level macrolide macrolinguistic macrolinguistics macromelia macromere macromineral macromodel macromodeling macromodelling macromolecular macromolecule macromutation macromutational macromutationism macromutationist macron macronodular macronuclear macronucleus

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