ultraviolet; ultraviolet radiation; ultraviolet region; UV. Electromagnetic radiation with wavelength longer than that of x-rays but shorter than that of visible light. Ultraviolet light can break some chemical bonds and cause cell damage. 
see ultraviolet rays.
Type of electromagnetic radiation which cannot be seen by humans. Ultraviolet, often abbreviated U.V. is term used when referring to ultraviolet light. Ultraviolet Lamp (U.V. lamp) is one that gives off ultraviolet light while blocking out white light, which causes fluorescent minerals to react.
Electromagnetic radiation with a wavelength shorter than that of visible light.
light waves shorter than the visible blue violet waves of the spectrum. Crude oil, colored distillates, residuum, a few drilling fluid additives, and certain minerals and chemicals fluoresce in the presence of ultraviolet light. These substances, when present in mud, may cause the mud to fluoresce.
The suns UVA and UVB rays that can cause both skin damage and skin cancers.
Electromagnetic radiation with wavelength longer thanthat of x-rays but shorter than that of visible light, wavelengths range from 1x10-9m to 400x10-9m. Ultraviolet light canbreak some chemical bonds and cause cell damage.Used for exposing photoresist in making semiconductor devices.
a form of invisible light in sunlight that is responsible for the tanning and burning of skin and can cause cataracts and skin cancer 
the invisible part of the light spectrum beyond the violet color