Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun 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.
- noun
Light bulb that emitsultraviolet light, usually used to create the illusion that anything white is glowing.
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treeseed commented on the word black light
Merriam-Webster Dictionary:
noun
Date: 1927
invisible ultraviolet light
February 4, 2008