What does ultraviolet mean?

Definitions for ultraviolet
ˌʌl trəˈvaɪ ə lɪtul·tra·vi·o·let

Here are all the possible meanings and translations of the word ultraviolet.

Princeton's WordNet

  1. ultraviolet, ultraviolet radiation, ultraviolet light, ultraviolet illumination, UVadjective

    radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays

  2. ultravioletadjective

    having or employing wavelengths shorter than light but longer than X-rays; lying outside the visible spectrum at its violet end

    "ultraviolet radiation"; "an ultraviolet lamp"


  1. ultravioletnoun

    Ultraviolet colour.

  2. ultravioletadjective

    of electromagnetic radiation beyond (higher in frequency than) light visible to the human eye; radiation with wavelengths from 380 nanometre - 10 nanometre

Webster Dictionary

  1. Ultravioletadjective

    lying outside the visible spectrum at its violet end; -- said of rays more refrangible than the extreme violet rays of the spectrum


  1. Ultraviolet

    Ultraviolet light is electromagnetic radiation with a wavelength shorter than that of visible light, but longer than X-rays, that is, in the range between 400 nm and 10 nm, corresponding to photon energies from 3 eV to 124 eV. It is so-named because the spectrum consists of electromagnetic waves with frequencies higher than those that humans identify as the color violet. These frequencies are invisible to humans, but visible to a number of insects and birds. UV light is found in sunlight and is emitted by electric arcs and specialized lights such as mercury lamps and black lights. It can cause chemical reactions, and causes many substances to glow or fluoresce. A large fraction of UV, including all that reaches the surface of the Earth, is classified as non-ionizing radiation. The higher energies of the ultraviolet spectrum from wavelengths about 10 nm to 120 nm are ionizing, but due to this effect, these wavelengths are absorbed by nitrogen and even more strongly by dioxygen, and thus have an extremely short path length through air. However, the entire spectrum of ultraviolet radiation has some of the biological features of ionizing radiation, in doing far more damage to many molecules in biological systems than is accounted for by simple heating effects. These properties derive from the ultraviolet photon's power to alter chemical bonds in molecules, even without having enough energy to ionize atoms.

How to pronounce ultraviolet?

How to say ultraviolet in sign language?


  1. Chaldean Numerology

    The numerical value of ultraviolet in Chaldean Numerology is: 6

  2. Pythagorean Numerology

    The numerical value of ultraviolet in Pythagorean Numerology is: 2

Examples of ultraviolet in a Sentence

  1. John Overstreet:

    There is no science that supports moderate exposure to ultraviolet light, inside or outside, as a dangerous risk.

  2. Adam Friedman:

    Since UV [ ultraviolet ] light is a carcinogen, now there's no reason to put one at risk for skin cancer, skin aging and even immune suppression.

  3. Martin Weinstock:

    It’s not the burn itself that affects the skin cancer risk, it’s the sun exposure that’s associated with that burn, the ultraviolet radiation that’s absorbed by the skin is what raises the risk.

  4. Donald Trump:

    Supposing we hit the body with a tremendous, whether it's ultraviolet or just very powerful, light.

  5. David Swayne:

    As we get into spring and summer, sunshine comes and ultraviolet light will kill influenza virus.

Images & Illustrations of ultraviolet

  1. ultravioletultravioletultravioletultravioletultraviolet

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Translations for ultraviolet

From our Multilingual Translation Dictionary

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    difficult to describe
    • A. epidemic
    • B. elusive
    • C. unsealed
    • D. occlusive

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