ultraviolet

Adjective

• 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
    

Noun

• radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays

Related words

• Synonyms: 
  ultraviolet radiation , ultraviolet light , ultraviolet illumination , UV