Antonyms
Synonyms

2. ultraviolet

noun. ['ˌəltrəˈvaɪəlɪt'] radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays.

Etymology

  • ultraviolet (English)
  • ultra- (English)
  • violet (English)
  • violette (Old French (842-ca. 1400))

3. ultraviolet

adjective. ['ˌəltrəˈvaɪəlɪt'] having or employing wavelengths shorter than light but longer than X-rays; lying outside the visible spectrum at its violet end.

Synonyms

Etymology

  • ultraviolet (English)
  • ultra- (English)
  • violet (English)
  • violette (Old French (842-ca. 1400))

5. radiation

noun. ['ˌreɪdiːˈeɪʃən'] the act of spreading outward from a central source.

Etymology

  • radiation (English)
  • radiatio (Latin)

6. radiation

noun. ['ˌreɪdiːˈeɪʃən'] the spread of a group of organisms into new habitats.

Etymology

  • radiation (English)
  • radiatio (Latin)

7. radiation

noun. ['ˌreɪdiːˈeɪʃən'] (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance.

Etymology

  • radiation (English)
  • radiatio (Latin)

8. radiation

noun. ['ˌreɪdiːˈeɪʃən'] a radial arrangement of nerve fibers connecting different parts of the brain.

Synonyms

Etymology

  • radiation (English)
  • radiatio (Latin)

9. radiation

noun. ['ˌreɪdiːˈeɪʃən'] the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay.

Antonyms

Etymology

  • radiation (English)
  • radiatio (Latin)
Antonym.com