black light

noun

1
: invisible ultraviolet light
2
: a lamp that radiates black light

Examples of black light in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
When illuminated with black lights, the installation seems to hover in mid-air. Janet Fullwood, Mercury News, 5 Jan. 2026 Some restoration can be hard to spot, so Hirsch recommends bringing a black light to help identify repairs in furniture, art, and pottery that may not be noted on the sales tag. Quincy Bulin, Southern Living, 23 Dec. 2025 The haunted house will feature black lights, strobe lights, loud noises and more special effects to create the frights. Elizabeth Marie Himchak, San Diego Union-Tribune, 21 Oct. 2025 The remodeled venue features black lights, lounge seating, video walls at each lane and lane-side food and drink service. Marcus Smith, Sacbee.com, 12 Sep. 2025 See All Example Sentences for black light

Word History

First Known Use

1913, in the meaning defined at sense 1

Time Traveler
The first known use of black light was in 1913

Browse Nearby Words

Cite this Entry

“Black light.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/black%20light. Accessed 9 Feb. 2026.

Kids Definition

black light

noun
: invisible ultraviolet or infrared light
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster