Definition of black light in English:

black light

noun

mass noun
  • Ultraviolet or infrared radiation, invisible to the eye.

    • ‘A team led by the engineering professor is mixing fluorescent dyes with standard polymers to create low-cost plastics that glow under black light.’
    • ‘She also used black light in some light sculptures to create glowing bluish reflections that gave a somber, nighttime appearance to them.’
    • ‘They are made visible primarily by black light on fluorescent paint that is strategically applied to sets, props and various parts of bodies.’
    • ‘The only light was black light and the whole room seemed to glow with rapidly moving figures around one another.’
    • ‘On the wall at each end are two small monitors that hold in black light the illuminated images of ships passing.’

Pronunciation

black light