Copyright © Philip M. Parker, INSEAD. Terms of Use.
Definition: Ultraviolet |
UltravioletAdjective1. 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". Noun1. Radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays. Source: WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. |
Note: Ultraviolet \Ul`tra*vi"o*let\, adjective. [Prefix ultra- violet.]. (Websters 1913) |
| Domain | Definition |
Aerospace | Pertaining to or same as ultraviolet radiation.Abbreviation UV. (references) |
Astronomy | Light that is so blue humans cannot see it. A band of the electromagnetic spectrum between the visible and the X-ray. Photons of ultraviolet light are more energetic than photons of visible light. (references) |
Energy | Electromagnetic radiation of a wavelength between the shortest visible violet and low energy x-rays. (references) |
| Electromagnetic radiation in the wavelength range of 4 to 400 nanometers. (references) | |
Mining | A. Of radiation, beyond the visible spectrum at its violet end; having a wavelength shorter than those of visible light and longer than those of X-rays b. Relating to, producing, or employing ultraviolet radiation.CF:visible light. (references) |
Physics | Electromagnetic radiation at wavelengths shorter than the violet end of visible light; the atmosphere of the Earth effectively blocks the transmission of most ultraviolet light. (references) |
Space | Electromagnetic radiation resembling visible light, but of shorter wavelength. UV cannot be seen by the eye, and much of it is absorbed by ozone, a variant of oxygen, at altitudes of 30-40 km. Satellite telescopes, however, can and do view stars and the Sun in UV, and even in the extreme UV (EUV), the range between UV and X-rays. (UV). (references) |
| (UV)electromagnetic radiation resembling visible light, but of shorter wavelength. UV cannot be seen by the eye, and much of it is absorbed by ozone, a variant of oxygen, at altitudes of 30-40 km. Satellite telescopes, however, can and do view stars and the Sun in UV, and even in the extreme UV (EUV), the range between UV and X-rays. (references) | |
Source: compiled by the editor from various references; see credits. | |
(From Wikipedia, the free Encyclopedia)
Ultraviolet (UV) radiation is electromagnetic radiation of a wavelength shorter than that of visible light, but longer than that of soft X-rays. The name means "beyond violet" (from Latin ultra, "beyond"), violet being the color of the shortest wavelength of visible light. It is colloquially called black light, as it is invisible to the human eye.
UV itself can be subdivided into near UV (380-200 nm wavelength) and extreme or vacuum UV (200-10 nm). When considering the effects of UV radiation on human health, the range of UV wavelengths is often subdivided into UV-A (380-315 nm), UV-B (315-280 nm), and UV-C (280-10 nm). See 1 E-7 m for a list of objects of comparable sizes.
The sun emits ultraviolet light in both the UV-A and UV-B bands, but because of absorption in the atmosphere's ozone layer, 99% of the ultraviolet light that reaches the Earth's surface is UV-A.
In general, UV-A is the least harmful, but causes sunburns at high exposures.
High intensities of UV-B light are hazardous to the eyes, and exposure can cause welder's flash (photokeratitis or arc eye).
Both UV-B and UV-C damage collagen fibers and thereby accelerate aging of the skin.
UV-B light has been linked to skin cancers such as melanoma. The radiation ionizes DNA molecules in skin cells, causing covalent bonds to form between adjacent thymine bases, producing thymidine dimers. Thymidine dimers do not base pair normally, which can cause distortion of the DNA helix, stalled replication, gaps, and misincorporation. These can lead to mutations, which can result in cancerous growths. The mutagenicity of UV radiation can be easily observed in bacteria cultures.
This cancer connection is the reason for concern about ozone depletion and the ozone hole.
As a defense against UV light, the body tans when exposed to moderate (depending on skin type) levels of radiation by releasing the brown pigment melanin. This helps to block UV penetration and prevent damage to the vulnerable skin tissues deeper down. Suntan lotion that partly blocks UV is widely available (often referred to as "sun block"). Nevertheless, most dermatologists recommend against prolonged sunbathing.
A positive effect of UV light is that it induces the production of vitamin D in the skin.Health effects
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Ultraviolet."
Synonyms: UltravioletSynonyms: ultraviolet illumination (n), ultraviolet light (n), ultraviolet radiation (n). (additional references) |
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Movie/TV Titles | Ultraviolet (2001) | |
Source: compiled by the editor from various references; see credits. | ||
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Source: compiled by the editor from various references; see credits. | |||
| Thumbnail | Description & Credit | Thumbnail | Description & Credit |
 | Pictured is a lab at the Frederick Cancer Research and Development Facility (FCRDF). A technician is seen in a series of pictures performing cell culture work. Noticeable is the yellow glow of ultraviolet light, which maintains the sterile conditions in the lab. These cell cultures are used for in vitro carcinogenesis assays. Credit: Linda Bartlett (photographer). |  | The ultraviolet pass box cabinet was used in Maximum Containment labs, through which possibly contaminated objects were passed in order to render any pathogens lifeless during transfer between laboratory rooms. Credit: CDC. |
 | M. tuberculosis is an acid-fast bacterium (AFB), and is therefore, undetectable when stained using a Gram stain technique. However, using this method, the M. tuberculosis bacteria glow yellow under ultraviolet light microscopy. Credit: CDC. |  | Lunar Surface Ultraviolet Camera. Credit: NASA. |
 | Ultraviolet image of Jupiter taken by the Wide Field Camera of the Hubble Space Telescope. The ... Credit: NASA. |  | NASA's Far Ultraviolet Spectroscopic Explorer (FUSE) satellite has given astronomers their ... Credit: NASA. |
 | Ultraviolet image of Jupiter's aurora taken by HST's STIS instrument. Credit: NASA. |  | Ultraviolet pyrometer mounted on the roof of the Clean Air Facility. Credit: Paths Less Taken - NOAA at the Ends of the Earth. |
 | Using the Dobson ozone spetrophotometer to measure the ozone content of the atmosphere by observing 2 ultraviolet wavelengths. Credit: Paths Less Taken - NOAA at the Ends of the Earth. |  | Ozone analysis map showing "ozone hole" over Antarctic continent. Data obtained from NOAA-9 operational environmental satellite. Data were acquired by the Solar Backscatter Ultraviolet (SBUV/2) instrument. Credit: NOAA in Space. |
Source: pictures compiled by the editor from various references; see picture credits. | |||
| Subject | Topic | Quote |
Health | How ultraviolet (UV) light affects the immune system and the relation of UV light to skin cancer. (references) | |
This device emits pulses of ultraviolet light--a laser beam--to etch away surface irregularities of corneal tissue. (references) | ||
Contrasting the effect of high-dose intermittent ultraviolet B light on human melanocytes with chronic UVB exposure. (references) | ||
Business | Similarly, ultraviolet spectrophotometers will not be in demand. (references) | |
VOCs discharged on the surface cause the ozone layer to become depleted, thus permitting more ultraviolet rays (UV-B) to reach the earth. (references) | ||
There is an increased interest in ultraviolet (UV) systems for water and wastewater treatment, based on the increasing number of these systems overseas. (references) | ||
Source: compiled by the editor from ICON Group International, Inc.; see credits. | ||
| "Ultraviolet" is generally used as an adjective (general or positive) -- approximately 100.00% of the time. "Ultraviolet" is used about 210 times out of a sample of 100 million words spoken or written in English. Its rank is based on over 700,000 words used in the English language. Some parts-of-speech are not covered due to the samples used by the British National Corpus. (note: percents less than one-hundredth of one percent have been omitted) |
| Parts of Speech | Percent | Usage per 100 Million Words | Rank in English |
| Adjective (general or positive) | 100% | 210 | 20,939 |
Source: compiled by the editor from several corpora; see credits.
Expressions using "ultraviolet": far ultraviolet ♦ ultraviolet illumination ♦ ultraviolet lamp ♦ ultraviolet light ♦ ultraviolet radiation ♦ ultraviolet radiation therapy ♦ ultraviolet ray ♦ ultraviolet rays ♦ ultraviolet source ♦ ultraviolet spectrum ♦ Ultraviolet Therapy ♦ ultraviolet treatment. Additional references. | |
| Hyphenated Usage | |
Beginning with "ultraviolet": ultraviolet-blind, ultraviolet-coloured, ultraviolet-irradiated. | |
Ending with "ultraviolet": far-ultraviolet, near-ultraviolet. | |
| Source: compiled by the editor from various references; see credits. | |
| The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com. |
| Language | Translations for "ultraviolet"; alternative meanings/domain in parentheses. | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Albanian | ultravjollcë, rreze ultravjollcë. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Arabic | فوق بنفسجي, إشعاع فوق بنفسجي. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Bulgarian | ултравиолетов. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Chinese | 紫外 (UV). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Czech | ultrafialový. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Danish | ultraviolet spektrofotometri (ultraviolet-visible spectrophotometry), Ultraviolet (ultra-violet, Ultraviolet (U.V)), ultraviolet absorptionsspektrofotometri (ultraviolet absorption spectrophotometry), ultraviolet filter (ultraviolet filter), ultraviolet stråling (ultraviolet radiation, UV radiation), ultraviolet-A stråling (long-wave ultraviolet radiation, long-wavelength ultraviolet radiation, ultraviolet A, ultraviolet A radiation), ultraviolet-B stråling (biologically active ultraviolet radiation, biologically effective ultraviolet radiation, ultraviolet B, ultraviolet B radiation), ultraviolet-C stråling (short-wave ultraviolet radiation, short-wavelength ultraviolet radiation, ultraviolet C, ultraviolet C radiation), UV-A stråling (long-wave ultraviolet radiation, long-wavelength ultraviolet radiation, ultraviolet A, ultraviolet A radiation), UV-B stråling (biologically active ultraviolet radiation, biologically effective ultraviolet radiation, ultraviolet B, ultraviolet B radiation), UV-C stråling (short-wave ultraviolet radiation, short-wavelength ultraviolet radiation, ultraviolet C, ultraviolet C radiation), UV-fluorescens (ultraviolet fluorescence, UV fluorescence), ultraviolet bånd (ultraviolet band), yderste del af det ultraviolette spektrum (far ultraviolet, far UV, far UVR, far-ultraviolet radiation, far-UV radiation), biologisk aktiv ultraviolet stråling (biologically active ultraviolet radiation, biologically effective ultraviolet radiation, ultraviolet B, ultraviolet B radiation), spektrofotometrisk undersøgelse ved ultraviolet lys (spectrophotometric examination in the ultraviolet), SBUV-instrument (backscatter ultraviolet instrument, backscattered solar ultraviolet radiation instrument, backscattered ultraviolet instrument, backscattered ultraviolet radiation instrument, BUV instrument, SBUV instrument, solar backscatter ultraviolet instrument), reflekteret UV-stråling (backscattered solar ultraviolet radiation, backscattered ultraviolet, backscattered ultraviolet radiation, backscattered UV, backscattered UV radiation, BUV radiation, solar backscattered ultraviolet), reflekteret ultraviolet stråling (backscattered solar ultraviolet radiation, backscattered ultraviolet, backscattered ultraviolet radiation, backscattered UV, backscattered UV radiation, BUV radiation, solar backscattered ultraviolet), fjern-ultraviolet stråling (far ultraviolet, far UV, far UVR, far-ultraviolet radiation, far-UV radiation). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Dutch | ultravioletstraling A (long-wave ultraviolet radiation, long-wavelength ultraviolet radiation, ultraviolet A, ultraviolet A radiation), Ultra violet (Ultraviolet (U.V)), ultravioletband (ultraviolet band), ultravioletfilter (ultraviolet filter), ultravioletspectrofotometrie (ultraviolet-visible spectrophotometry), ultravioletstraler (ultraviolet lamp), ultravioletstraling B (biologically active ultraviolet radiation, biologically effective ultraviolet radiation, ultraviolet B, ultraviolet B radiation), ultravioletstraling C (short-wave ultraviolet radiation, short-wavelength ultraviolet radiation, ultraviolet C, ultraviolet C radiation), ultraviolette straling (ultraviolet radiation, UV radiation), UV-fluorescentie (ultraviolet fluorescence, UV fluorescence), UV-foto-elektronenspectroscopie (ultraviolet photoelectron spectroscopy), UV-spektrometrie (spectrophotometric examination in the ultraviolet), ultraviolet-spectrometrie (spectrophotometric examination in the ultraviolet), verre-ultravioletstraling (far ultraviolet, far UV, far UVR, far-ultraviolet radiation, far-UV radiation), detector van teruggekaatste zonnestraling (backscatter ultraviolet instrument, backscattered solar ultraviolet radiation instrument, backscattered ultraviolet instrument, backscattered ultraviolet radiation instrument, BUV instrument, SBUV instrument, solar backscatter ultraviolet instrument), spectrofotometrische bepaling in het UV-gebied (ultraviolet absorption spectrophotometry), reflectie-ultravioletstraling van de zon (backscattered solar ultraviolet radiation, backscattered ultraviolet, backscattered ultraviolet radiation, backscattered UV, backscattered UV radiation, BUV radiation, solar backscattered ultraviolet). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Farsi | فرابنفش , ایجادشده بوسیله اشعه ماورابنفش . (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Finnish | uv-fotoelektronispektroskopia (ultraviolet photoelectron spectroscopy), UV-fluoresenssi (ultraviolet fluorescence, UV fluorescence), ultraviolettisuodatin (ultraviolet filter), ultraviolettisäteily (ultra-violet, ultraviolet radiation, UV radiation), ultraviolettikaista (ultraviolet band), ultravioletti-C-säteily (short-wave ultraviolet radiation, short-wavelength ultraviolet radiation, ultraviolet C, ultraviolet C radiation), ultravioletti-B-säteily (biologically active ultraviolet radiation, biologically effective ultraviolet radiation, ultraviolet B, ultraviolet B radiation), ultravioletti-A-säteily (long-wave ultraviolet radiation, long-wavelength ultraviolet radiation, ultraviolet A, ultraviolet A radiation), ultravioletin ja näkyvän alueen spektrofotometria (ultraviolet-visible spectrophotometry), takaisinsironnutta auringon ultraviolettisäteilyä mittaava instrumentti (backscatter ultraviolet instrument, backscattered solar ultraviolet radiation instrument, backscattered ultraviolet instrument, backscattered ultraviolet radiation instrument, BUV instrument, SBUV instrument, solar backscatter ultraviolet instrument), takaisinsironnut auringon ultraviolettisäteily (backscattered solar ultraviolet radiation, backscattered ultraviolet, backscattered ultraviolet radiation, backscattered UV, backscattered UV radiation, BUV radiation, solar backscattered ultraviolet), SBUV-instrumentti (backscatter ultraviolet instrument, backscattered solar ultraviolet radiation instrument, backscattered ultraviolet instrument, backscattered ultraviolet radiation instrument, BUV instrument, SBUV instrument, solar backscatter ultraviolet instrument), kaukoultraviolettisäteily (far ultraviolet, far UV, far UVR, far-ultraviolet radiation, far-UV radiation). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
French | ultraviolet. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
German | ultraviolett (ultra-violet). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Greek | υπεριώδησ. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Hebrew | אולטר" ס'ול. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Hungarian | ultraibolya (ultra-violet), ibolyántúli (ultra-violet). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Italian | ultravioletto (ultra-violet). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Japanese Kanji | 紫外 (UV). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Japanese Katakana | しがい (body, city, city tax, corpse, outside the city area, remains, suburbs, the streets, town, urban areas, UV). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Korean | 자외 . (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Pig Latin | avioletultray ultravioleta. (various references) ultraviolet. (various references) ультрафиолетовый (ultra-violet). (various references) ultravioletni (ultra-violet). (various references) ultravioleta (ultra-violet, Ultraviolet (U.V)). (various references) ultraviolett (ultra-violet). (various references) morötesi, ültraviyole. (various references) ультрафіолетовий. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Derivations | |
Words beginning with "ultraviolet": ultraviolets. (additional references) | |
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"Ultraviolet" is suggested in spellcheckers for the following: Ultraiolet, ultraviolent. (additional references) | |
| Source: compiled by the editor, based on several corpora (additional references). | |
| # of Phoneme Matches | Pronunciation | Word(s) rhyming with "ultraviolet" (pronounced u'ltruvī"ulut) |
| 6 | -v ī" u l u t | inviolate, Violet. |
| 4 | -u l u t | amulet, consulate, desolate, inarticulate, particulate. |
| 3 | -l u t | anklet, appellate, autopilot, ballot, billet, booklet, boomlet, bracelet, branchlet, bullet, Charlotte, chocolate, collet, copilot, droplet, emasculate, eyelet, Gantlet, gauntlet, giblet, goblet, gullet, hamlet, harlot, helot, immaculate, lancelet, leaflet, mallet, Merlot, Millet, mullet, omelet, palate, palette, pallet, pamphlet, pellet, piglet, pilot, platelet, prelate, quintuplet, scarlet, sextuplet, skillet, starlet, tablet, template, templet, toilet, triplet, wallet, zealot. |
Source: compiled by the editor (additional references); see credits. | ||
Scrabble® Enable2K-Verified Anagrams | |
| Words within the letters "a-e-i-l-l-o-r-t-t-u-v" | |
-3 letters: allotter, littoral, outliver, outrival, rotative, tailleur, tortilla, tutorial, vaultier, violater, volatile. | |
-4 letters: allover, alveoli, eluvial, levator, literal, litoral, littler, outlier, outlive, outrate, outrave, outtell, overall, overlit, ovulate, reallot, rivulet, rouille, tallier, tertial, titular, toluate, tortile, torulae, triolet, tutelar, uralite, variole, vaulter, violate, virtual. | |
-5 letters: allure, attire, eluvia, latter, laurel, litter, little, loiter, loreal. | |
| Words containing the letters "a-e-i-l-l-o-r-t-t-u-v" | |
+1 letter: ultraviolent, ultraviolets. | |
| Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. | |
| 1. Definition 2. Synonyms 3. Crosswords 4. Usage: Modern | 5. Usage: Commercial 6. Images: Slideshow 7. Images: Photo Album 8. Quotations: Non-fiction | 9. Usage Frequency 10. Expressions 11. Expressions: Internet 12. Translations: Modern | 13. Derivations 14. Rhymes 15. Anagrams 16. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
