单词	sun protection factor
释义	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 Example Sentences Recent Examples on the Web In particular, there’s some collective head-scratching around whether a sunscreen with a higher sun protection factor — say, SPF 100 — actually means more protection from the sun when compared to another sunscreen that only features SPF 30 or 50. Macaela Mackenzie, Allure, 17 June 2022 As a reminder, the sun protection factor (SPF) is only a measure of how well a sunscreen protects the skin against UVB rays. Macaela Mackenzie, Allure, 17 June 2022 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 See More Word History First Known Use 1968, in the meaning defined above Medical Definition sun protection factor noun : spf
随便看	gelatinizers gelatinizes gelatinizing gelatinobromide gelatinochloride gelatinoids gelatinous gelatinous fiber gelatinously gelatinousness gelatinousnesses gelatins gelation gelations gelatis gelato gelatos Gelbvieh gelbviehs gelcap gelcaps geld gelded Gelderland gelders

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。