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UVA

American  
Or UV-A

noun

  1. ultraviolet light with a relatively long wavelength, able to penetrate the deep layers of the skin.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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Zinc oxide is widely used in mineral sunscreen because it blocks UVA rays, which contribute to skin aging, as well as UVB rays, which cause sunburn and increase the risk of skin cancer.

From Science Daily ● Jul. 20, 2026

It provides broader spectrum protection than other ingredients, shielding skin from both UVA rays—which penetrate deep into the skin, causing premature aging—and UVB rays, which cause sunburns.

From The Wall Street Journal ● Jul. 3, 2026

Once they are six months old, the NHS recommends using a sunscreen rated at least 50 SPF which offers high levels of protection from both UVA and UVB.

From BBC ● Jun. 22, 2026

The UVA radiation in a tanning bed is roughly 15 times that found anywhere on the surface of the planet.

From Los Angeles Times ● May 6, 2026

“Should I go visit him at UVA? I don’t want it to be like I’m picking sides. Jessie’s my friend, too.”

From "What If It's Us" by Becky Albertalli and Adam Silvera

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