Definitions for "Ultra-Violet"
Zone of invisible radiations beyond the violet end of the spectrum of visible radiation.
Of or relating to the range of radiation wavelengths from approx. 4,000 angstroms, just beyond the violet in the visible spectrum, to approx. 40 angstroms, on the border of the x-ray region.
Those light rays, outside the visible spectrum at its violet end, that have a chemical effect upon the dried films of finishing materials.