xanthene

 
Pronunciation: /ˈzanθiːn/

noun

[mass noun] Chemistry
  • a yellowish crystalline compound, whose molecule contains two benzene rings joined by a methylene group and an oxygen atom, and whose derivatives include brilliant, often fluorescent, dyes such as fluorescein and rhodamines.
    • Chemical formula: C13H10O

Origin:

late 19th century: from Greek xanthos 'yellow' + -ene