ultraviolet

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adjective ul·tra·vi·o·let \ ˌəl-trə-ˈvī-(ə-)lət \

Definition of ultraviolet

1 :situated beyond the visible spectrum at its violet end used of radiation having a wavelength shorter than wavelengths of visible light and longer than those of X-rays
2 :relating to, producing, or employing ultraviolet radiation

ultraviolet

noun

Recent Examples of ultraviolet from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ultraviolet.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of ultraviolet

1840


ULTRAVIOLET Defined for English Language Learners

ultraviolet

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adjective

Definition of ultraviolet for English Language Learners

  • —used to describe rays of light that cannot be seen and that are slightly shorter than the rays of violet light


ULTRAVIOLET Defined for Kids

ultraviolet

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adjective ul·tra·vi·o·let \ ˌəl-trə-ˈvī-ə-lət \

Definition of ultraviolet for Students

:relating to, producing, or being energy that is like light but has a slightly shorter wavelength and lies beyond the violet end of the spectrum

Medical Dictionary

1

ultraviolet

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adjective ul·tra·vi·o·let \ ˌəl-trə-ˈvī-(ə-)lət \

medical Definition of ultraviolet

1 :situated beyond the visible spectrum at its violet end used of radiation having a wavelength shorter than wavelengths of visible light and longer than those of X-rays
2 :relating to, producing, or employing ultraviolet radiation

2

ultraviolet

noun

medical Definition of ultraviolet

:ultraviolet radiation


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