#fluorescein__fluoresceine__fluorescent_dye__resorcinolphthalein  a yellow dye that is visible even when highly diluted; used as an absorption indicator when silver nitrate solution is added to sodium chloride in order to precipitate silver chloride (turns pink when no chloride ions are left in solution and negative fluorescein ions are then absorbed)
  supertype:  dye  absorption_indicator
  subtype:  eosin__bromeosin  a red fluorescent dye resulting from the action of bromine on fluorescein; used in cosmetics and as a biological stain for studying cell structures

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