ul·tra·vi·o·let

(ŭl′trə-vī′ə-lĭt)

adj. Abbr. UV

1. Of or relating to electromagnetic radiation between violet visible light and x-rays in the electromagnetic spectrum, having frequencies between 790 terahertz and 30 petahertz and wavelengths between 380 nanometers and 10 nanometers.

2. Of or relating to a light bulb that emits ultraviolet radiation.

The ultraviolet range of electromagnetic radiation: Sunburns result from radiation in the ultraviolet.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ultraviolet

(ˌʌltrəˈvaɪəlɪt)

(General Physics) 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

adj

(General Physics) of, relating to, or consisting of radiation lying in the ultraviolet: ultraviolet radiation. Abbreviation: UV

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ul•tra•vi•o•let

(ˌʌl trəˈvaɪ ə lɪt)

adj.

1. pertaining to electromagnetic radiation having wavelengths in the range of approximately 5–400 nm, shorter than visible light but longer than x-rays.

2. pertaining to, producing, or using light having such wavelengths: an ultraviolet lamp. Compare infrared.

3. ultraviolet radiation.

[1870–75]

ul·tra·vi·o·let

(ŭl′trə-vī′ə-lĭt)

Adjective

Relating to electromagnetic radiation having wavelengths shorter than those of visible light but longer than those of x-rays. See more at electromagnetic spectrum.

Noun

Ultraviolet light or the ultraviolet part of the spectrum. See Note at infrared.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun	1.	ultraviolet - radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays ultraviolet illumination, ultraviolet light, ultraviolet radiation, UV actinic radiation, actinic ray - electromagnetic radiation that can produce photochemical reactions sun-ray, sunray - a ray of artificial ultraviolet light from a sunray lamp
Adj.	1.	ultraviolet - having or employing wavelengths shorter than light but longer than X-rays; lying outside the visible spectrum at its violet end; "ultraviolet radiation"; "an ultraviolet lamp" invisible, unseeable - impossible or nearly impossible to see; imperceptible by the eye; "the invisible man"; "invisible rays"; "an invisible hinge"; "invisible mending"

Translations

فَوْق البَنَفْسَجي

ultrafialový

ultraviolet

ultraviolett

υπεριώδης

ultravioletti

ultraviolet

ibolyántúli

útfjólublár

ultravioletto

ultravioletinis

ultraviolets

ultrafiolett

ultravioleta

ультрафиолет

ultrafialový

ultraviolett

mor ötesi

紫外线的

ultraviolet

[ˈʌltrəˈvaɪəlɪt]

A. ADJ → ultravioleta inv

B. CPD ultraviolet light N → luz f ultravioleta
ultraviolet radiation N → radiación f ultravioleta
ultraviolet rays NPL → rayos mpl ultravioleta
ultraviolet treatment N → tratamiento m de onda ultravioleta

Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

ultraviolet

[ˌʌltrəˈvaɪələt] adj [rays] → ultraviolet(te); [lamp] → à UV

Collins English/French Electronic Resource. © HarperCollins Publishers 2005

ultraviolet

[ˌʌltrəˈvaɪəlɪt] adj → ultravioletto/a

Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

ultraviolet

(altrəˈvaiəlit) adjective

(of light) consisting of rays from the invisible part of the spectrum beyond the purple, that have an effect on the skin, eg causing suntan.

ul·tra·vi·o·let

a. ultravioleta, que se extiende más allá de la zona violeta del espectro;

___ rays → rayos ___;

___ therapy → terapia de radiación ___.

ultraviolet

adj ultravioleta

Mentioned in

References in periodicals archive

Use of the intensifier and VCR allows investigators and forensic researchers to visualize an ultraviolet image immediately, without waiting for film to be developed.

Ultraviolet forensic imaging

It has to do with the depletion of the ozone layer, the part of the earth's atmosphere responsible for filtering the sun's ultraviolet rays before they reach us here on the ground.

Sunscreen savvy

Ultraviolet B radiation is much more variable than ultraviolet A as latitude increases due to atmospheric scattering of the light and absorption by oxygen.

Blame your ancestors if you don't get a tan

And more than 1.5 million years of life are lost every year due to excessive ultraviolet radiation exposure.

Ultraviolet radiation tied to 60,000 deaths

The protective pigment, called sporopollenin, and several of its long-lived breakdown products absorb a specific wave-length of ultraviolet radiation, says Lomax.

Spores record changes in ozone concentration

After cleaning, the air is then exposed to the ultraviolet light in the GUV module.

Air purification system. (Product Watch)

Erythema, or sunburn, is caused by a type of skin-damaging light called ultraviolet B, or UVB.

Beach survival tips: what's summer without a trip to the beach? But basking the scorching sun has its pitfalls

Extreme ultraviolet (EUV) radiation at 13.4 nm holds promise because of the fortuitous high reflectivity of Mo/Si multilayer mirrors at this wavelength.

Extreme ultraviolet reflectivity intercomparison. (News Briefs)

As they become acidified, the lakes and rivers would have reduced amounts of dissolved organic carbons, which would allow much greater penetration of ultraviolet light.

Collision with Earth Would Be Devastating

Hubble's Space Telescope Imaging Spectrograph (STIS) observed a similar phenomenon at longer ultraviolet wavelengths, also indicating that the companion star's light was visible but was later blocked by the primary during an eclipse.

Eta Carinae: nasty neighbors: astronomers have direct evidence that one of our galaxy's most massive stars has a companion

To remotely control the channels' opening, Miesenbock and Lima developed molecules made up of ATP surrounded by a chemical cage that breaks down in the presence of ultraviolet light.

Remote control minds: light flashes direct fruit fly behavior