ultraviolet
US /ˌʌltrəˈvaɪəlɪt/
・UK /ˌʌltrə'vaɪələt/
B2
adjective
- Concerning light waves that are extremely short
- Having a wavelength shorter than that of visible light and longer than that of X-rays; relating to ultraviolet radiation.
noun
- A lamp that emits ultraviolet radiation.
other
- Ultraviolet radiation.