Definitions for "Fluorescent Dye"
Keywords:  dye, slight, absorb, emit, blue
A dye which becomes fluorescent giving off light, when it is exposed to short wave radiation such as ultraviolet or near ultraviolet light.
Molecule that absorbs light at one wavelength and responds by emitting light at another wavelength; the emitted light is of longer wavelength (and hence of lower energy) than the light absorbed.
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)