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单词 xanthene
释义 xan·thene
\ˈzanˌthēn\ noun
(-s)
Etymology: xanth- + -ene
1.
 a. : a white crystalline heterocyclic compound C13H10O obtained by reduction of xanthone — called also 9H-xanthene; compare structural formula
 b. : an isomeric compound C13H10O that is the parent of the colored forms of the xanthene dyes — called also 3H-xanthene
2. : any of various derivatives of the two xanthenes; especially : xanthene dye
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