definitions
  • synonyms

black light

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noun

invisible infrared or ultraviolet light.

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Nearby words

black knight, black knot, black land, black lead, black letter, black light, black liquor, black list, black lives matter, black locust, black look

Origin of black light

First recorded in 1925–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for black light

  • They had been allowed to force their way into the sealed level and were there caught in a black-light trap.

    Legacy|James H Schmitz

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

Science definitions for black light

black light


Invisible ultraviolet radiation. Black light causes certain fluorescent materials to emit visible light.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.