ULTRAVIOLET • DICCIONARIO INGLES.COM • Definition of Ultraviolet

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/ˌəltrəvˈaɪəlɪt/ Listen

Ultraviolet

adjective

Having or employing wavelengths shorter than light but longer than X-rays; lying outside the visible spectrum at its violet end. "An ultraviolet lamp"

noun

Radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays. Synonyms: ultraviolet illumination, ultraviolet light, ultraviolet radiation, UV.

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Etymology of 'Ultraviolet'

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"Ultraviolet" Quotes from Famous Books

... this indication we must turn our attention to parts of the ordinary spectrum, well known in themselves, which we have purposely left out of our study so far. These are the regions of the ultra-violet and the infra-red, invisible in themselves, but forming part of the spectrum as a whole. The ultraviolet manifests through chemical effects, the infra-red through thermal effects. We have left them out of our considerations because these regions of the spectrum differ from the visible part not only quantitatively, as present-day science believes, but qualitatively also, and in a ...

— Man or Matter • Ernst Lehrs

... of the atmosphere composed of ozone gas (O3) that resides approximately 25 miles above the Earth's surface and absorbs solar ultraviolet radiation that can be ...

— The 2007 CIA World Factbook • United States