ultravioleta

adj. ultraviolet, beyond the rays of the violet end of the visible light spectrum, of or pertaining to ultraviolet light

adj. ultraviolet, beyond the rays of the violet end of the visible light spectrum

= ultraviolet [ultra-violet].
Ex: Ultraviolet investigations revealed that foxings show heavy fluorescence at the initial stage of development; luminescence decreases as the colour intensity increases = Las investigaciones sobre los rayos ultravioleta revelaron que los descoloridos muestran una gran fluorescencia en la etapa inicial del desarrollo: la luminiscencia disminuye conforme aumenta la intensidad del color.
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* rayo ultravioleta = ultraviolet ray.