from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Invisible ultraviolet or infrared radiation. Black light causes fluorescent materials to emit visible light and is used to take pictures in the dark.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Light bulb that emits ultraviolet light, usually used to create the illusion that anything white is glowing.
Sorry, no etymologies found.