adj.
Pronunciation: ˌ ə l-tr ə - ' v ī -( ə -)l ə t
Function: adjective
Date: 1840
1 : situated beyond the visible spectrum at its violet end ― used of radiation having a wavelength shorter than wavelengths of visible light and longer than those of X-rays
2 : relating to, producing, or employing ultraviolet radiation
– ultraviolet noun