Definition of fluorescein in English:

fluorescein

Syllabification: fluo·res·ce·in
Pronunciation: /flo͝o(ə)ˈresēən, flôrˈesēən
 
/

noun

Chemistry
An orange dye with a yellowish-green fluorescence, used as an indicator and tracer.
More example sentences
  • To this purpose we have considered four dyes, namely: indo - 1, rhodamine 6G, fluorescein, and pyrene.
  • Quinine bisulfate was used as the standard for the bisbenzimide dyes, for PIH and ethidium bromide the standard used was rhodamine 101 and fluorescein was used for the cyanine dyes.
  • Anole splenocytes were phagocytically active and produced copious amounts of nitric oxide following exposure to fluorescein labeled E. coli bioparticles.

Origin

late 19th century: from fluorescence + -in1.

Definition of fluorescein in:

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Pronunciation: dəˈmôrəˌlīz
verb
cause (someone) to lose confidence or hope; dispirit