sun protection factor
noun
: a number assigned to a sunscreen that is the factor by which the time required for unprotected skin to become sunburned is increased when the sunscreen is used
—abbreviation SPF
Examples of sun protection factor in a Sentence
Recent Examples on the Web
Every bottle is labeled with an SPF or sun protection factor.
—
Laura Baisas, Popular Science, 22 May 2025
Use a broad-spectrum, water-resistant sunscreen with a sun protection factor (SPF) of 30 or higher.
—Mark Gurarie, Verywell Health, 14 May 2025
Pick a broad-spectrum sunscreen with a sun protection factor (SPF) of at least 30.10
4.
—Carrie Madormo, Rn, Mph, Verywell Health, 30 Apr. 2025
What’s more fascinating is that, unlike LED light therapy, this laser works over sun protection factor (SPF) or makeup without (supposedly) losing efficacy.
—Julian Chokkattu, Wired News, 19 Apr. 2025
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Laura Baisas, Popular Science, 22 May 2025
Use a broad-spectrum, water-resistant sunscreen with a sun protection factor (SPF) of 30 or higher.
—Mark Gurarie, Verywell Health, 14 May 2025
Pick a broad-spectrum sunscreen with a sun protection factor (SPF) of at least 30.10
4.
—Carrie Madormo, Rn, Mph, Verywell Health, 30 Apr. 2025
What’s more fascinating is that, unlike LED light therapy, this laser works over sun protection factor (SPF) or makeup without (supposedly) losing efficacy.
—Julian Chokkattu, Wired News, 19 Apr. 2025
See All Example Sentences for sun protection factor
Cite this Entry
“Sun protection factor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sun%20protection%20factor. Accessed 3 Jul. 2025.
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