UVA

noun
\ ˌyü-(ˌ)vē-ˈā How to pronounce UVA (audio) \

Definition of UVA

: radiation that is in the region of the ultraviolet spectrum which extends from about 320 to 400 nm in wavelength and that causes tanning and contributes to aging of the skin

First Known Use of UVA

1975, in the meaning defined above

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Dictionary Entries Near UVA

UV

UVA

uva grass

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Cite this Entry

“UVA.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/UVA. Accessed 5 Jul. 2022.

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More Definitions for UVA

UVA

noun
\ -ˈā How to pronounce UVA (audio) \

Medical Definition of UVA

: radiation that is in the region of the ultraviolet spectrum which is nearest to visible light and extends from about 320 to 400 nm in wavelength and that causes tanning and contributes to aging of the skin

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