Dictionary

fluorescence

noun fluo·res·cence \-ˈre-sən(t)s\

Definition of FLUORESCENCE

:  luminescence that is caused by the absorption of radiation at one wavelength followed by nearly immediate reradiation usually at a different wavelength and that ceases almost at once when the incident radiation stops; also :  the radiation emitted — compare phosphorescence
ADVERTISEMENT

Origin of FLUORESCENCE

fluorspar + opalescence
First Known Use: 1852
Medical Dictionary

fluorescence

noun flu·o·res·cence \-ˈes-ən(t)s\

Medical Definition of FLUORESCENCE

:  luminescence that is caused by the absorption of radiation at one wavelength followed by nearly immediate reradiation usually at a different wavelength and that ceases almost immediately when the incident radiation stops; also :  the radiation emitted
flu·o·res·cent \-ˈes-ənt\ adjective

Browse

Next Word in the Dictionary: fluorescentPrevious Word in the Dictionary: fluorescein sodiumAll Words Near: fluorescence
ADVERTISEMENT
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears