ultraviolet

pronunciation

How to pronounce ultraviolet in British English: UK [ˌʌltrəˈvaɪələt]word uk audio image

How to pronounce ultraviolet in American English: US [ˌʌltrəˈvaɪələt] word us audio image

  • Noun:
    radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays
  • Adjective:
    having or employing wavelengths shorter than light but longer than X-rays; lying outside the visible spectrum at its violet end

Word Origin

ultraviolet (adj.)
"beyond the violet end of the visible spectrum," 1840, from ultra- + violet. Ultra-red (1870) was a former name for what now is called infra-red.

Example

1. Butterflies can use ultraviolet markings to find healthier mates .
2. Solar cells prefer visible , or even ultraviolet radiation .
3. At ultraviolet , video-screen walls and music produce different moods for a multisensory eating experience .
4. Two active regions glow brightly in this ultraviolet image of the sun .
5. We can protect skin from ultraviolet light externally by using a sunblock .

more: >How to Use "ultraviolet" with Example Sentences