UVA has various meanings in the Governmental & Military category. Discover the full forms, definitions, and usage contexts of UVA in Governmental & Military.
One of the three types of invisible light rays given off by the sun. Although ultraviolet C is the most dangerous type of ultraviolet light in terms of its potential to harm life on earth, it cannot penetrate earths protective ozone layer. Therefore, it poses no threat to human, animal or plant life on earth. Ultraviolet A and ultraviolet B, on the other hand, do penetrate the ozone layer in attenuated form and reach the surface of the planet.
Governmental & MilitaryUltraviolet radiation is electromagnetic radiation or light having a wavelength greater than 10 nm but less than 400 nm. Ultraviolet radiation has a wavelength longer than that of x-rays but shorter than that of visible light.
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