sun protection factor

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English[edit]

Noun[edit]

sun protection factor (plural sun protection factors) (abbreviated as SPF)

  1. an indication of how long a sunscreen remains effective when applied to the skin
    If someone normally burns in 10 minutes with no sunscreen, then a sunscreen with sun protection factor 20 will provide protection for up to 20x10 = 200 minutes

Translations[edit]