sun protection factor

noun

Definition of sun protection factor

: 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 The sun protection factor, or SPF, stops UV radiation from activating melanocytes and causing black patches. Emerald Elitou, Essence, 22 Apr. 2022 The American Academy of Dermatology recommends a shot glass-size amount with a sun protection factor of at least 30, applied 15 minutes before going outdoors. BostonGlobe.com, 6 Aug. 2021 The recall includes all can sizes and all levels of sun protection factor, or SPF. Linda A. Johnson, orlandosentinel.com, 15 July 2021 The recall includes all can sizes and all levels of sun protection factor, or SPF. Linda A. Johnson, Chron, 15 July 2021 The recall includes all can sizes and all levels of sun protection factor, or SPF. CBS News, 15 July 2021 The recall includes all can sizes and all levels of sun protection factor, or SPF. Linda A. Johnson, chicagotribune.com, 15 July 2021 The recall includes all can sizes and all levels of sun protection factor, or SPF. NBC News, 15 July 2021 The recall includes all can sizes and all levels of sun protection factor, or SPF. Kelly Tyko, USA TODAY, 15 July 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sun protection factor.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of sun protection factor

1968, in the meaning defined above

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Time Traveler for sun protection factor

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The first known use of sun protection factor was in 1968

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Dictionary Entries Near sun protection factor

sunproof

sun protection factor

sunray

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Statistics for sun protection factor

Last Updated

27 Apr 2022

Cite this Entry

“Sun protection factor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sun%20protection%20factor. Accessed 19 May. 2022.

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More Definitions for sun protection factor

sun protection factor

noun

Medical Definition of sun protection factor

: spf

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