Electromagnetic radiation of shorter wavelength than visible radiation but longer than x-rays; roughly, radiation in the wavelength interval from 10 to 4000 angstroms.
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http://nsidc.org/arcticmet/glossary/ultra_violet_radiation.html
that portion of the electromagnetic spectrum extending from the violet, or short-wavelength, end of the visible light range to the X-ray region. ... [40 related articles]
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http://www.britannica.com/eb/a-z/u/5
Invisible rays that are part of the energy that comes from the sun. Ultraviolet radiation that reaches the Earth's surface is made up of two types of rays, called UVA and UVB. Ultraviolet radiation also comes from sun lamps and tanning beds. It can cause skin damage, premature aging, melanoma, and other types of skin cancer. It can also cause probl...
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http://www.cancer.gov/dictionary?expand=U
optical radiation for which the wavelengths are shorter than those for visible radiation NOTE - For ultraviolet radiation, the range between 100 nm and 400 nm is commonly subdivided into : UV-A 315............................. 400 nm UV-B 280..............................315 nm UV-C 100............................. 280 nm
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http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=845-01-05
Electromagnetic radiation in the wavelength range of 1nm â€` 380nm whose harmful effects on the human being include: burning of the skin, skin cancers, inflammation of the conjunctiva, and irritation of the cornea.
Found on
http://www.encyclo.co.uk/local/20474
electro-magnetic radiation in the range of frequencies immediately above visible light and below x-rays. The ultraviolet radiation reaching the Earth's surface has both harmful and beneficial effects.
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http://www.encyclo.co.uk/local/20842
<physics> Invisible light, next to visible light in the electromagnetic spectrum. The most common source of ultraviolet radiation is the sun. ... Acronym: UV ... (16 Dec 1997) ...
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http://www.encyclo.co.uk/local/20973
the portion of the spectrum of electromagnetic radiation of wavelengths between 0.39 and 0.18 μm; see also ultraviolet rays.
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http://www.encyclo.co.uk/local/21001
The energy range just beyond the violet end of the visible spectrum. Although ultraviolet radiation constitutes only about 5 percent of the total energy emitted from the sun, it is the major energy source for the stratosphere and mesosphere, playing a dominant role in both energy balance and chemical composition.
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http://www.encyclo.co.uk/local/22268
Ultraviolet radiation: Invisible rays that are part of the energy that comes from the sun. Ultraviolet radiation can burn the skin and cause skin cancer. Ultraviolet radiation is made up of three types of rays -- ultraviolet A, ultraviolet B, and ultraviolet C. Although ultraviolet C is the most dangerous type of ultraviolet light in terms of its p...
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http://www.medterms.com/script/main/art.asp?articlekey=5898
Electromagnetic radiation with a wavelength between 0.1 and 0.4 micrometers (µm).
Found on
http://www.physicalgeography.net/physgeoglos/u.html
High-energy radiation existing beyond the violet region of the electromagnetic spectrum; ultraviolet rays emitted by the sun are responsible for a number of effects on the skin, including tanning, burning, and activation of vitamin D.
Found on
http://www.thehorse.com/Glossary.xhtml?L=U
electromagnetic radiation of shorter wavelength than visible radiation but longer than x-rays; roughly, radiation in the wavelength interval from 10 to 4000 angstroms.
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https://nsidc.org/cryosphere/glossary?page=27
Electromagnetic radiation with a wavelength shorter than that of visible light, but longer than x-rays.
Found on
https://www.encyclo.co.uk/local/20087
Electromagnetic radiation with wavelengths slightly shorter than visible light.
Found on
https://www.encyclo.co.uk/local/21033
Ultraviolet radiation (UV) is one form of radiant energy coming from the sun. The sun emits a range of energy known as the electromagnetic spectrum. The various forms of energy, or radiation, are classified according to wavelength (measured in nanometres (nm) where one nm is a millionth of a millimetre). The shorter the wavelength. the more energet...
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https://www.encyclo.co.uk/local/21131
Electromagnetic radiation of wavelengths from about 400 to 10 nanometres (where the X-ray range begins). Physiologically, ultraviolet (UV) radiation is extremely powerful, producing sunburn and causing the formation of vitamin D in the skin. UV radiation is invisible to the human eye, but its effects can be demonstrated. The stratospheric ozone...
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https://www.encyclo.co.uk/local/21221
Invisible rays that emanate from the sun. Exposure to UV rays can result in damaging the skin and even lead to melanoma and other kinds of skin cancer.
Found on
https://www.encyclo.co.uk/local/22233
(UV) invisible rays that come from the sun. UV radiation can damage the skin and cause melanoma and other types of skin cancer. UV rays are also produced by tanning beds and lamps and can damage the skin.
Found on
https://www.stanfordchildrens.org/en/topic/default?id=glossary---safety-and
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