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violet ray Definition

violet ray

noun

  1. the shortest ray of the visible spectrum
  2. loosely an ultraviolet ray

violet ray Usage Examples

Adjective modifier

  • ultra: Over exposure to ultra violet rays measured by the UV Index causes skin cancer, one of the most common cancers in the UK.
  • harmful: Ozone ( O 3 ) is needed in the upper atmosphere to protect the Earth from harmful ultra violet rays.