ULTRAVIOLET

ultraviolet

(adjective) 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”

ultraviolet, ultraviolet radiation, ultraviolet light, ultraviolet illumination, UV

(noun) radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays

Source: WordNet® 3.1

Etymology

Adjective

ultraviolet (comparative more ultraviolet, superlative most ultraviolet)

of electromagnetic radiation beyond (higher in frequency than) light visible to the human eye; radiation with wavelengths from 380 nanometre - 10 nanometre

Noun

ultraviolet (countable and uncountable, plural ultraviolets)

Ultraviolet colour.

Source: Wiktionary

Ul`tra*vi"o*let, a. Etym: [Pref. ultra- + violet.] (Physics)

Definition: Lying outside the visible spectrum at its violet end; -- said of rays more refrangible than the extreme violet rays of the spectrum.

Source: Webster’s Unabridged Dictionary 1913 Edition

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