sunblock

noun
sun·​block | \ ˈsən-ˌbläk How to pronounce sunblock (audio) \

Definition of sunblock

: a preparation (such as a lotion) applied to the skin to prevent sunburn (as by physically blocking out ultraviolet radiation) also : its active ingredient (such as titanium dioxide) — compare sunscreen

Examples of sunblock in a Sentence

Recent Examples on the Web

In the shallows, where the sun’s rays are intense, the proteins act as a type of sunblock for a coral reef, reducing light stress. Smithsonian, "Amazing Photos Reveal the Hidden Light of Undersea Life," 25 July 2019 Pick up your new prescription sunglasses at Specs Optometry (opening in August), a tube of Becca Ultimate Love lipstick at Sephora cosmetics and some sunblock, flip-flops and a stylish beach hat at Urban Beach House. Pam Kragen, San Diego Union-Tribune, "One Paseo: A day in the life of San Diego’s new urban village," 11 July 2019 Amid heat warnings from the U.S. Park Police, the crowds migrated with their sunblock and water bottles and miniature flags to the Mall. Peter Jamison, Washington Post, "Trump’s Fourth of July celebration thrills supporters, angers opponents," 4 July 2019 The ‘sun protection factor’ refers to the number of minutes the sunblock is recommended. Radiant Therapy, USA TODAY, "New technology helps treat skin cancer without surgery," 8 July 2019 But do the sprays really work as well as the traditional sunblock? Caroline Picard, Good Housekeeping, "How to Use Spray Sunscreen the Right Way, According to Dermatologists," 15 Feb. 2019 Your best bet to prevent peeling remains using plenty of sunblock and avoiding a sunburn in the first place. Caroline Picard, Good Housekeeping, "What to Do When Your Sunburn Starts Peeling," 18 Apr. 2019 The remaining contents include specialty cotton pads from Japan, sunblock from Korea, and at least two masks (a shea butter infusion for her face and a cooling, herbal iteration for her feet). Kate Branch, Vogue, "This Fantastic Beasts 2 Star Has a Serious Knack for K-Beauty," 17 Nov. 2018 The available information about these items does not outright describe the supplements as comparable to sunscreen, or something that should take the place of sunblock. Laurel Naversen Geraghty, SELF, "7 Things You Shouldn’t Rely on for Sun Protection," 12 Aug. 2018

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

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First Known Use of sunblock

1953, in the meaning defined above

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Dictionary Entries near sunblock

sunblasted

sunblind

sunblink

sunblock

sun blotch

sunbonnet

sunbow

Statistics for sunblock

Last Updated

9 Aug 2019

Look-up Popularity

Time Traveler for sunblock

The first known use of sunblock was in 1953

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More Definitions for sunblock

sunblock

noun

English Language Learners Definition of sunblock

: a lotion that you put on your skin to prevent sunburn by completely blocking out the sun's rays

sunblock

noun
sun·​block | \ ˈsən-ˌbläk How to pronounce sunblock (audio) \

Kids Definition of sunblock

: a preparation applied to the skin to prevent sunburn usually by blocking the sun's ultraviolet radiation

sunblock

noun
sun·​block | \ ˈsən-ˌbläk How to pronounce sunblock (audio) \

Medical Definition of sunblock

: a preparation (as a lotion) applied to the skin to prevent sunburn (as by physically blocking out ultraviolet radiation) also : its active ingredient (as titanium dioxide) — compare sunscreen

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More from Merriam-Webster on sunblock

Rhyming Dictionary: Words that rhyme with sunblock

Spanish Central: Translation of sunblock

Nglish: Translation of sunblock for Spanish Speakers

Britannica.com: Encyclopedia article about sunblock

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