ult
ra
vio
let
Plural
ultraviolet rays
1
a type of electromagnetic radiation with shorter wavelengths than visible light, often associated with sunlight and used in various applications
- Protect your skin from ultraviolet rays by wearing sunscreen.
- Ultraviolet light is used in tanning beds to darken the skin.
- Some animals can see ultraviolet light, which helps them find food and mates.
- Ultraviolet lamps are used to sterilize medical equipment and surfaces.
- Astronomers study stars and galaxies using telescopes that detect ultraviolet radiation.