ul·tra·vi·o·let /ˌʌltrəˈvaɪ(ə)lət/
 (a.)紫外線的


 ul·tra·vi·o·let /ˌəltrəˈvaɪ(ə)lət/ 形容詞
 紫外(線)的,紫外線


 ultraviolet
 紫外線 UV


 ultraviolet
 紫外線


 Ul·tra·vi·o·let a.  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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 ultraviolet
      adj : 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 : radiation lying in the ultraviolet range; wave lengths
          shorter than light but longer than X rays [syn: {ultraviolet
          radiation, ultraviolet light, {ultraviolet
          illumination, UV]