ultraviolet

Definitions

  • WordNet 3.6
    • adj 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"
    • n ultraviolet radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays
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Webster's Revised Unabridged Dictionary
  • Interesting fact: Pigeons can see ultraviolet lights
    • a Ultraviolet (Physics) Lying outside the visible spectrum at its blue-violet end; -- said of light more refrangible (i. e. having a shorter wavelength) than the extreme violet rays of the visible spectrum. Electromagnetic radiation with wavelengths shorter than those of ultrviolet light are not usually considered as light waves, but are classified differently. The ultraviolet region of the electromagnetic spectrum is generally considered as comprising those electromagnetic emissions with wavelengths lying between those of visible light and those of X-rays, i. e. between 4000 Angstroms and 100 Angstroms.
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Century Dictionary and Cyclopedia
  • Interesting fact: Bees can see ultraviolet light.
    • ultraviolet Beyond the violet: used of the invisible rays of the spectrum which are more refrangible than the violet, and consequently lie beyond them. See spectrum.
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Quotations

  • Walter Benjamin
    Walter%20Benjamin
    “Like ultraviolet rays memory shows to each man in the book of life a script that invisibly and prophetically glosses the text.”

Etymology

Webster's Revised Unabridged Dictionary
Pref. ultra-, + violet,

Usage

In literature:

Ultraviolet rays in the range of 2,800 to 3,200 A which cause sunburn, prematurely age human skin and produce skin cancers.
"Worldwide Effects of Nuclear War: Some Perspectives" by United States Arms Control and Disarmament Agency
The glare-shields would keep out most of the heat and a very great deal of the ultraviolet the sun gave off.
"Space Tug" by Murray Leinster
In most of the vats vegetation grew in various stages, greening under the ultraviolet rays that radiated from the low roof.
"Rebels of the Red Planet" by Charles Louis Fontenay
Treatment by vitamins, diet, antibiotics, infrared and ultraviolet rays, all were useless.
"Wind" by Charles Louis Fontenay
On a hunch I dropped in an aluminum alkyl, and then pushed the polymerization along with both ultraviolet and heat.
"The Professional Approach" by Charles Leonard Harness
But some of the blue glow was almost certainly due to ionization of the air by the hard ultraviolet.
"Anything You Can Do ..." by Gordon Randall Garrett
The ultraviolet rays are beneficial as a germicide, but are deadly if too strong.
"The Wreck of the Titan" by Morgan Robertson
In the "X" circuit, the negative was grounded along an ultraviolet beam from the ship's repeller-ray generator.
"The Airlords of Han" by Philip Francis Nowlan
The ultraviolet microscope shows us objects hitherto invisible because smaller than the wave length of visible light.
"The Grain Ship" by Morgan Robertson
He stood cursing the air ultraviolet until Ellen entered.
"Industrial Revolution" by Poul William Anderson
Lots of things, like x-rays and ultraviolet rays, heat, chemicals, disease, can cause this.
"Thy Rocks and Rills" by Robert Ernest Gilbert
Vitreous silica is optically inactive, when homogeneous, and is highly transparent to ultraviolet radiations.
"The Methods of Glass Blowing and of Working Silica in the Oxy-Gas Flame" by W. A. Shenstone
It would apply only if the spectrum had no infra-red and ultraviolet extensions.
"Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7" by Various
Ultraviolet radiation could serve as an extraterrestrial energy source for organic synthesis.
"Significant Achievements in Space Bioscience 1958-1964" by National Aeronautics and Space Administration
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In news:

New ultraviolet analyzer eliminates converter need, adds convenience.
NASA looks at ultraviolet radiation .
UltraViolet is getting one step closer to launch.
According to the Skin Cancer Foundation, 80 percent of a person's lifetime exposure to ultraviolet radiation occurs before the ages of 18 to 20.
Critically acclaimed television series " Smash " is coming to DVD with UltraViolet this winter.
UltraViolet Could Mean You'll Really 'Own' That Movie.
Redheads have more risk even without sun ultraviolet rays.
All Entries in UltraViolet .
Barnes & Noble Adds UltraViolet to Nook HD and HD+.
Diet Mountain Dew UltraViolet is available nationwide for twelve weeks beginning August 10.
Perez Hilton is a fan, but don't hold that against L.A. Electro-pop duo Ultraviolet Sound.
Kent Mathieu, former creative director and owner of UVFX Scenic Productions, has launched UVART, a scenic services company specializing in design and production of Ultraviolet visual effects.
The Optoelectronics group of Vishay Intertechnology Inc announced the VLMU3100, an ultraviolet (UV) LED in the surface-mount PLCC-2 package.
Exclusive premiere of Ultraviolet Sound's 'Dead on the Dancefloor'.
Hollywood's UltraViolet to make its way to TVs.
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In science:

The ultraviolet difficulties in model II can be understood as arising from the fact that a δ -function potential is too singular to have a well-defined spectrum for d > 1.
Hopping between Random Locations: Spectrum and Instanton
On the other hand, the instanton result appears to be ultraviolet finite.
Hopping between Random Locations: Spectrum and Instanton
Gracia-Bondia, “On the ultraviolet behaviour of quantum fields over noncommutative manifolds”, Int.J.
Renormalization of noncommutative U(N) gauge theories
This strange behavior arises because we are including contributions from all scales and ξ (~x ) is ultraviolet-divergent.
Multiscale Gaussian Random Fields for Cosmological Simulations
Some of the Veltman-Passarino functions are ultraviolet divergent.
Prototype Graphs for radiative Corrections to Polarized Chargino or Neutralino Production in Electron-Positron Annihilation
Since the 3d Einstein action without matter coupling is topological, ultraviolet divergences are less singular in our model.
4d Gauge Theory and Gravity Generated from 3d Ones at High Energy
Einstein gravity without matter coupling has no dynamical degrees of freedom (being a topological theory ), so that the ultraviolet divergences in our model are less singular.
4d Gauge Theory and Gravity Generated from 3d Ones at High Energy
Note that the ultraviolet is at the lower end of the figure.
Duality Cascade and Oblique Phases in Non-Commutative Open String Theory
The vertical axis is proportional to T −3/2 , so that the ultraviolet corresponds to the bottom, and the infrared to the upper end of the figure.
Duality Cascade and Oblique Phases in Non-Commutative Open String Theory
The regular vertexes which are generated from Γ will contain no ultraviolet divergence either.
Gauge Theory of Gravity
We start with the solution ˜B (x) = B (x) for m = ∞ (in presence of a fixed ultraviolet (UV) cutoff Λ) and then decrease m.
Functional renormalization group at large N for random manifolds
In the NJL there appear quadratic and logarithmic ultraviolet divergences.
Pion Structure at High and Low Energies in Chiral Quark Models
The main feature of noncommutative field theories is the ultraviolet (UV) and infrared (IR) mixing of divergences .
Noncommutative Supersymmetric Theories
The presence of such a shell is implied by our ultraviolet spectra and will be discussed in detail in Paper II.
A radio jet in the prototypical symbiotic star Z And?
There is therefore an effective ultraviolet cutoff on V (because α and β being bounded, so is α − β ).
Random Matrices and the Anderson Model
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