: radiation that is in the region of the ultraviolet spectrum which extends from about 200 to 280 nm in wavelength and that is more hazardous than UVB but is mostly absorbed by earth's upper atmosphere

Examples of UVC in a Sentence

Recent Examples on the Web During the iPadOS 17 beta period over the summer, some small developers like Jingcheng Tang tested the new iPad UVC capability with an app that can display HDMI video using a common capture card. Umar Shakir, The Verge, 20 Sep. 2023 The public and private sectors should also develop better personal protective equipment and do further research on sterilization technology such as Far UVC—an ionizing radiation process that, if successful, could offer a near-universal defense against pathogens and be installed in any building. William MacAskill, Foreign Affairs, 11 Aug. 2022

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'UVC.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1978, in the meaning defined above

Time Traveler
The first known use of UVC was in 1978

Dictionary Entries Near UVC

Cite this Entry

“UVC.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/UVC. Accessed 28 Mar. 2024.

Medical Definition

UVC

noun
: radiation that is in the region of the ultraviolet spectrum which extends from about 200 to 280 nm in wavelength and that is more hazardous than UVB but is mostly absorbed by the earth's upper atmosphere
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