[ US /ˌəɫtɹəˈvaɪəɫɪt/ ]
[ UK /ˌʊltɹɐvˈa‍ɪ‍ələt/ ]
  1. radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays
  1. having or employing wavelengths shorter than light but longer than X-rays; lying outside the visible spectrum at its violet end
    an ultraviolet lamp
    ultraviolet radiation
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How To Use ultraviolet In A Sentence

  • By recording the spectra of several distant quasars whose light pierces the Milky Way, the spacecraft revealed some 50 ultraviolet-absorbing gas clouds around our galaxy.
  • Then the mixture is applied to a cleaned device surface and activated by ultraviolet light.
  • Test your different textiles for color fastness and degradation to long-term ultraviolet exposure.
  • AERONET is a global network of more than 100 sun photometers that measure the amount of sunlight absorbed by aerosols (fine particles in the air) at wavelengths from ultraviolet to infrared.
  • The patent is issued for ultraviolet protective coatings for application to heat sensitive record materials and other photodegradable printed matter.
  • an ultraviolet lamp
  • But one other thing that helps is ultraviolet light. Times, Sunday Times
  • Research published in 1994 suggests that increased ultraviolet radiation caused by stratospheric ozone depletion may be killing frog eggs.
  • In winter, the stems, or canes, turn from green to red, which helps protect them from ultraviolet rays and oxidation.
  • The uranium gives it a yellow or green colour and makes it glow under ultraviolet light. Times, Sunday Times
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