ultraviolet radiation

Ultraviolet (UV) light is electromagnetic radiation with a wavelength shorter than that of visible light, but longer than soft X-rays. It is so named because the spectrum starts with wavelengths slightly shorter than the wavelengths humans identify as the color violet (purple).
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UltraViolet is a 2006 science fiction / action film. It was released in North America on March 3, 2006. The film was written and directed by Kurt Wimmer and produced by Screen Gems. It stars Milla Jovovich as Violet and Cameron Bright as Six. The film was released onto DVD and Blu-ray Disc on June 27, 2006.
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Ultraviolet radiation Invisible light rays that may be responsible for sunburns, skin cancers, and cataract formation. Mentioned in: Cataracts [more]Ultraviolet radiation - Community and Resources

Noun
1. radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays
(synonym) ultraviolet, ultraviolet light, ultraviolet illumination, UV
(hypernym) actinic radiation, actinic ray
(hyponym) sunray, sun-ray

Invisible rays that are part of the energy that comes from the sun. Ultraviolet radiation can burn the skin and cause skin cancer. It is made up of two types of rays, UVA and UVB. UVB rays are more likely than UVA rays to cause sunburn, but UVA rays pass further into the skin. Scientists have long thought that UVB radiation can cause melamona and other types of skin cancer. They now think that UVA radiation also may add to skin damage that can lead to cancer. For this reason, skin specialists recommend that people use sunscreens that block both kinds of radiation.

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UV radiation. Invisible rays that are part of the energy that comes from the sun. UV radiation also comes from sun lamps and tanning beds. UV radiation can damage the skin and cause melanoma and other types of skin cancer. UV radiation that reaches the Earth's surface is made up of two types of rays, called UVA and UVB rays. UVB rays are more likely than UVA rays to cause sunburn, but UVA rays pass deeper into the skin. Scientists have long thought that UVB radiation can cause melanoma and other types of skin cancer. They now think that UVA radiation also may add to skin damage that can lead to skin cancer and cause premature aging. For this reason, skin specialists recommend that people use sunscreens that reflect, absorb, or scatter both kinds of UV radiation.

A form of radiation used in the treatment of cancer.