ultraviolet
Pronunciation: /ʌltrəˈvʌɪələt/
Physics
Translate ultraviolet | into French | into German | into Italian | into Spanish Definition of ultraviolet
adjective
noun
Ultraviolet radiation spans wavelengths from about 10 nm to 400 nm, and is an important component of sunlight, although the ozone layer prevents much of it from reaching the earth’s surface. While ultraviolet is necessary for the production of vitamin D2 in the skin, it is now known that excessive exposure can be harmful, causing skin cancer and genetic mutation