ultraviolet

UK: ˌʌltrəˈvaɪələt | US: ˌʌltrəˈvaɪələt

Definition

  1. adj. relating to or denoting electromagnetic radiation with a wavelength shorter than that of visible light but longer than X-rays

  2. n. ultraviolet light or radiation

Structure
ultra <beyond>violet <purple>
Etymology

ultraviolet = ultra<beyond> + violet<purple>

  • ultra (Latin origin: ultra, meaning "beyond") → In modern usage, it denotes extremity or surpassing limits (e.g., ultrasound, ultramodern).
  • violet (Latin origin: viola, referring to the purple flower) → Represents the color at the short-wavelength end of the visible spectrum.

Etymology Origin:
Coined in the early 19th century, ultraviolet combines ultra- (beyond) and violet to describe light "beyond violet" in the spectrum. The term reflects scientific categorization of invisible radiation just outside visible light, leveraging Latin roots for precision.

Examples

  1. Ultraviolet rays from the sun can cause skin damage.

  2. The lab uses ultraviolet light to sterilize equipment.

  3. Some flowers have patterns visible only under ultraviolet light.

  4. Ultraviolet photography reveals hidden details in artworks.

  5. Wear sunglasses that block ultraviolet radiation.