black light


noun

invisible infrared or ultraviolet light.

Origin of black light

First recorded in 1925–30

Example sentences 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

Scientific definitions for black light

black light

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