fluorescein: Meaning and Definition of

fluo•res•ce•in

Pronunciation: (floo--res'ē-in, flô-, flō-), [key]
— n. Chem.
  1. an orange-red, crystalline, water-insoluble solid, CHO, that in alkaline solutions produces an orange color and an intense green fluorescence: used to trace subterranean waters and in dyes.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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