ultraviolet radiation(n = noun.phenomenon) ultraviolet, ultraviolet illumination, ultraviolet light, uv - radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays;
is a kind of actinic radiation, actinic ray
has particulars: sun-ray, sunray

acoustic radiation pressure, actinic radiation, adaptive radiation, alpha radiation, background radiation, beta radiation, black-body radiation, blackbody radiation, corpuscular radiation, cosmic background radiation, cosmic microwave background radiation, cosmic radiation, electromagnetic radiation, electron radiation, gamma radiation, infrared radiation, ionizing radiation, neutron radiation, nonparticulate radiation, particulate radiation, planck's radiation law, radiation, radiation diagram, radiation field, radiation pattern, radiation physics, radiation pressure, radiation pyrometer, radiation sickness, radiation syndrome, radiation therapy, radio radiation, solar radiation, ultraviolet, ultraviolet illumination, ultraviolet lamp, ultraviolet light, ultraviolet ray, ultraviolet source, ultraviolet spectrum, visible radiation