Definition of ULTRAVIOLET

ultraviolet

Meanings

Plural: ultraviolets

Noun

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

Adjective Satellite

  • 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"

Adj

  • Of electromagnetic radiation beyond (higher in frequency than) light visible to the human eye; radiation with wavelengths from 380 to 10 nanometres.
  • Relating to very high energies or very small distances or time spans.

Origin / Etymology

Etymology tree
Proto-Indo-European *h₂el-
Latin ūls
Proto-Indo-European *-teros?
Latin -ter
Latin -ā
Latin ultrālbor.
English ultra-
Latin viola
Old French -ette
Old French violettebor.
Middle English violet
English violet
English ultraviolet
From ultra- (“beyond”) + violet (“violet”).

Synonyms

ultraviolet illumination, ultraviolet light, ultraviolet radiation, UV

Antonyms

infrared

Scrabble Score: 14

ultraviolet is a valid Scrabble (US) TWL word
ultraviolet is a valid Scrabble Word in Merriam-Webster MW Dictionary
ultraviolet is a valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 18

ultraviolet is a valid Words With Friends word