Fluorescence

[Sarah]

That property which some transparent bodies have of producingat their surface, or within their substance, light different in colorfrom the mass of the material, as when green crystals of fluor sparafford blue reflections. It is due not to the difference in the colorof a distinct surface layer, but to the power which the substance hasof modifying the light incident upon it. The light emitted byfluorescent substances is in general of lower refrangibility than theincident light. Stockes.

[Sarah]

To insert a fluorescence light bulb into a person's body through an opening (anus, vagina, etc.) While in the body, the bulb can be broken causing the vacuum within to explode and send out shards and grains of glass. To be used for sexual pleasure.

[Couch Potatoe]

light produced by a substance that has absorbed light or other radiation , which has a longer wavelength than the light that has been absorbed:

[Tina]

The visible or invisible radiation emitted by certain substances as a result of incident radiation of a shorter wavelength such as X-rays or ultraviolet light.