black light

noun

1. invisible infrared or ultraviolet light.

black light

noun

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

black light

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

Word History and Origins

Origin of black light¹

First recorded in 1925–30

Example Sentences

This includes an incomplete copy of a typed manuscript titled "Black Light", which Brady appears to have written.

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Keightley writes in his own book that Brady told him "Black Light" was at least 600 pages long.

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The Bennett family's lawyer asked the documentary-makers to let the police know about "Black Light".

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Several months before his death in December 2021, Slim 400 described in an interview that he saw a “black light, or a dark cloud” after the 2019 shooting.

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It used to be that you could put a black light at the edge of a cornfield at night and expect a bountiful harvest of moths the next morning.

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