UVA
noun
: 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
Cite this Entry
“UVA.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/UVA. Accessed 21 Jul. 2025.
Copy CitationMedical Definition
UVA
noun
: 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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share