Word:

Ultraviolet

Ul`tra`vi´o`let
a.1.(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.
Noun1.ultraviolet - radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays
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
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ultramicroscope
ultramicroscopic
ultramodern
Ultramontane
Ultramontanism
Ultramontanist
Ultramundane
ultranationalism
ultranationalistic
Ultrared
ultrasonic
ultrasonically
ultrasonography
ultrasound
Ultrasuede
Ultratropical
-- Ultraviolet --
ultraviolet illumination
ultraviolet lamp
ultraviolet light
ultraviolet radiation
ultraviolet source
ultraviolet spectrum
Ultrazodiacal
Ultrix
Ultroneous
Ulugh Muz Tagh
Ulugh Muztagh
Ulula
Ululant
Ululate
Ululation
ULV
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