: radiation that is in the region of the ultraviolet spectrum which extends from about 280 to 320 nm in wavelength and that is primarily responsible for sunburn, aging of the skin, and the development of skin cancer

Examples of UVB in a Sentence

Recent Examples on the Web
These examples are automatically compiled from online sources to illustrate current usage. Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Now 45% off Amazon Neutrogena Sport Face Sunscreen SPF 70+, Oil-Free Facial Sunscreen Lotion with Broad Spectrum UVA/UVB Sun Protection, Sweat-Resistant & Water-Resistant, 2.5 fl. Kelsey Chapman, ABC News, 25 Mar. 2024 What to Look for in Sunscreens UVA and UVB Protection First and foremost, the best sunscreens offer broad-spectrum coverage (both UVA and UVB). Christian Gollayan, menshealth.com, 10 May 2023

Word History

First Known Use

1975, in the meaning defined above

Time Traveler
The first known use of UVB was in 1975

Dictionary Entries Near UVB

Cite this Entry

“UVB.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/UVB. Accessed 8 Nov. 2024.

Medical Definition

UVB

noun
: radiation that is in the region of the ultraviolet spectrum which extends from about 280 to 320 nm in wavelength and that is primarily responsible for sunburn, aging of the skin, and the development of skin cancer
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