xanthene

noun
xan·thene | \ˈzan-ˌthēn \

Definition of xanthene 

1 : a white crystalline heterocyclic compound C13H10O also : an isomer of this that is the parent of the colored forms of the xanthene dyes

2 : any of various derivatives of xanthene

First Known Use of xanthene

1898, in the meaning defined at sense 1

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The first known use of xanthene was in 1898

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xanthene

noun
xan·thene | \ˈzan-ˌthēn \

Medical Definition of xanthene 

1 : a white crystalline heterocyclic compound C13H10O also : an isomer of this that is the parent of the colored forms of the xanthene dyes

2 : any of various derivatives of xanthene

More from Merriam-Webster on xanthene

Britannica.com: Encyclopedia article about xanthene

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