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ultraviolet
[uhl-truh-vahy-uh-lit]
adjective
beyond the violet in the spectrum, corresponding to light having wavelengths shorter than 4000 angstrom units.
pertaining to, producing, or utilizing light having such wavelengths.
an ultraviolet lamp.
noun
ultraviolet radiation.
ultraviolet
/ ˌʌٰəˈɪəɪ /
noun
the part of the electromagnetic spectrum with wavelengths shorter than light but longer than X-rays; in the range 0.4 × 10 –6 and 1 × 10 –8 metres
adjective
UV.of, relating to, or consisting of radiation lying in the ultraviolet
ultraviolet radiation
ultraviolet
Relating to electromagnetic radiation having frequencies higher than those of visible light but lower than those of x-rays, approximately 10 15 –10 16 hertz. Some animals, such as bees, are capable of seeing ultraviolet radiation invisible to the human eye.
See more at electromagnetic spectrum
Ultraviolet light or the ultraviolet part of the spectrum.
See Note at infrared
51Թ History and Origins
Origin of ultraviolet1
Example Sentences
Because HLS MS 172 is in places badly faded, the academics worked not from the original but from pictures obtained using ultraviolet light and spectral imaging.
Two wildlife charities are recruiting volunteers to help spot glow-in-the-dark caterpillars at night using ultraviolet lights.
Live mosquitoes will be exterminated using ultraviolet light.
The World Health Organization’s International Agency for Research on Cancer says alcohol is a Group 1 carcinogen, putting it in the company of tobacco, asbestos and ultraviolet radiation.
Using a deep ultraviolet laser, the team demonstrated how precisely delivered pulses of light can trigger localised chemical reactions on a diamond surface.
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