ultraviolet

ul-tra-vi-o-let · adjective

imported

Definitions

adjective

  1. 1.

    Of or relating to electromagnetic radiation with wavelengths shorter than visible light but longer than X-rays, approximately 10 to 400 nanometers.

  2. 2.

    Relating to or using such radiation.

Related words

Antonyms: infrared
See also: infrared, radiation
Synonyms: UV

Etymology

From English ultra- meaning "beyond" + violet, referring to light beyond the violet end of the visible spectrum.