ULTRAVIOLET
Source: 567
Ul′tra‐vi″o‐let (?), a. [[Pref. ultra- + violet.]] (Physics) Lying outside the visible spectrum at its violet end; — said of rays more refrangible than the extreme violet rays of the spectrum.
Source: 567
Ul′tra‐vi″o‐let (?), a. [[Pref. ultra- + violet.]] (Physics) Lying outside the visible spectrum at its violet end; — said of rays more refrangible than the extreme violet rays of the spectrum.