Definitions
American Heritage® Dictionary of the English Language, Fourth 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.
Wiktionary
- n. Light bulb that emits ultraviolet light, usually used to create the illusion that anything white is glowing.
Examples
“He was aware of nothing but a vanishment of paradise, an optimism that had turned to dust and ash, a joy that had once shone brighter than the summer sun, but now had disappeared and melted in the black light and frigid heat of massacre and cumulative remorse.”
“ Ribbons of smoke and black light radiated out from”
“ Half-hypnotized by the black light and the triumphant crescendo of sound, Chainer had a vision of his future.”
“Familiar with horror as they were, the soldiers soon be - came loath to approach the screaming runesword as it shone with a peculiarly brilliant light-a black light that pierced the blackness itself.”
“On its next revolution the smoking cage made contact with the gargadon's massive head, and there was a flash of black light and an implosion so strong it sucked the leaves off the trees nearby.”
Lists
These user-created lists contain the word ‘black light’.
-
Fads
With bows of great respect to Connie Willis, author of "Bellwether" and other wonderful books.
Hula-Hoop, bungee-jumping, hair-bobbing, pogs, jitterbug, jogging, mesmerism, Ouija board, miniature golf, The Old Curiosity..., Harry Potter, line dancing and 271 more...
-
black phrases/words
Tolkien worked in the black section
of the dictionary at one point in his lifeblack-about, Black Act, black afraid, black Africa, black African, black amber, Black America, Black American, black and blae, black and blue, black angry, black ant and 578 more...
-
Things from my memory
nigger baby, mexican jumping bean, puddle jumper, mood ring, pet rock, cat scratch fever, taxman, hippie, vaseline, argyrol, mercurchrome, methiolade and 655 more...
-
Black or White
black and white, snow-white, coal-black, blacksmith, whitesmith, blackball, white-box testing, Blackberry, white pages, black book, white paper, blacklist and 107 more...
-
Jumbo Shrimp
A list of classic oxymorons (using the term loosely). Named after my brother's favorite.
jumbo shrimp, fine mess, plastic glasses, plastic silverware, working vacation, alone together, head butt, new classic, adult children, baby grand, constant change, almost exactly and 191 more...
-
Jacqueline's Words
glittery, horny, amazing, wanderlust, forlorn, lustily, nonchalant, cool, passive, submissive, roundabout, carousel and 558 more...
Tweets
Looking for tweets for black light.

treeseed Merriam-Webster Dictionary:
noun
Date: 1927
invisible ultraviolet light Feb 4, 2008