black light

noun

invisible infrared or ultraviolet light.

Origin of black light

First recorded in 1925–30

Words Nearby black light

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use black light in a sentence

The Upper East Side location also boasts a black light and disco ball.
SoulCycle Is a Booming Exercise Chain for the 1 Percent | Filipa Ioannou | July 19, 2013 | THE DAILY BEAST
Does it stand the test of time, or is it just an effect, like the black light?
King of Neon | Renata Espinosa | February 6, 2009 | THE DAILY BEAST
No visible light came from those bulbs—only "black light" as it is called.
Hooded Detective, Volume III No. 2, January, 1942 | Various
In the black light, luminous fingers suddenly showed themselves.
Hooded Detective, Volume III No. 2, January, 1942 | Various
I bought the Emma Goldman poster on the way home and stuck it up over my desk, tacked over a vintage black-light poster.
Little Brother | Cory Doctorow

We use black light almost exclusively or activated phosphorous such as on the sheaths of the nerve cables.
The Brain | Alexander Blade
Gangs of air conditioners were dressed blue, electricians white, black-light specialists in purple, radionics men in orange.
The Brain | Alexander Blade

British Dictionary definitions for black light

black light

noun

the invisible electromagnetic radiation in the ultraviolet and infrared regions of the spectrum

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for black light

black light

Invisible ultraviolet radiation. Black light causes certain fluorescent materials to emit visible light.

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