What does Radiation, ultraviolet mean in medical term?

Radiation, ultraviolet means: The three main types of ultraviolet radiation are ultraviolet A, UVB, and UVC. While ultraviolet C can cause severe damage to human health, the ultraviolet A and B rays cannot penetrate Earth’s protective layer of ozone. It is therefore not a threat to any species of animal, human or plant life.
(in Medical Dictionary)

What else does Radiation, ultraviolet mean?

However, ultraviolet A and UVB penetrate the ozone layer and reach the Earth’s surface in an attenuated state. Since ultraviolet A is less powerful than UVB, researchers have long believed that ultraviolet B was the only culprit for skin cancers in people who are prone to sunburn and overexposure. However, recent research has shown that ultraviolet A may also be a cause of skin cancer. While ultraviolet B has a higher chance of causing sunburn than UVA, ultraviolet A penetrates deeper into the skin. Ultraviolet A can lead to melanoma, and other forms of skin cancer. Ultraviolet B can cause skin cancer. Skin and cancer experts recommend sunscreens that block ultraviolet A and UVB radiation.
(in Medical Dictionary)

Radiation, UV: These invisible rays are part of the solar energy. Skin cancer can be caused by ultraviolet radiation.
(in Medical Dictionary)

Artificial light from tanning lamps, in addition to the natural sunlight, also contains UV A and UV B. The ultraviolet light generated by electric arc lamps is used to heat furnaces and enable motion picture projectors to display movies.
(in Medical Dictionary)

Although ultraviolet light is harmful, it can help to maintain your health. The production of vitamin D is stimulated when ultraviolet light hits human skin. This promotes bone growth.
(in Medical Dictionary)