(a.) Lying outside the visible spectrum at its violet end; -- said of rays more refrangible than the extreme violet rays of the spectrum.
ULTRAVIOLET
Meaning of ULTRAVIOLET in English
Webster's English dictionary. Английский словарь Webster. 2012
(a.) Lying outside the visible spectrum at its violet end; -- said of rays more refrangible than the extreme violet rays of the spectrum.
Webster's English dictionary. Английский словарь Webster. 2012