U1L1T1R1A1V4I1O1L1E1T1S1
15 points
ULTRAVIOLETS is validvalid
ULTRAVIOLET, [n]
ULTRAVIOLET, the part of the spectrum beyond the visible spectrum at its violet end [n]
ULTRAVIOLET, [n]
ULTRAVIOLET, the part of the spectrum beyond the visible spectrum at its violet end [n]