Last Updated：2025/11/20

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An indication of how long a sunscreen remains effective when applied to the skin.

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sun protection factor

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Source Word

sun protection factor

Noun

An indication of how long a sunscreen remains effective when applied to the skin.

Japanese Meaning

日焼け止めが肌に塗布された際、その効果が持続する時間を示す指標

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Google Translation / DeepL Translation

日焼け止めを選ぶときは、肌に塗った後どれくらい効果が続くかを知るために必ずSPF値を確認してください。

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Sense（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

Google Translation / DeepL Translation

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sun protection factors

（ plural ）

as SPF

（ abbreviation ）

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sun protection factor

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sun protection factor

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