sunblock

noun

sun·​block ˈsən-ˌbläk 

: 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

Teaching natural consequences shouldn’t put your kid in harm's way—which means putting your foot down on essentials like wearing a helmet or putting on sunblock at the beach. —Lauryn Higgins, Parents, 16 Jan. 2025

The bathrooms also feature sunblock artwork in the bathrooms, which was chosen because Palm Springs has more than 300 days of sunshine per year. —Amanda Lauren, Forbes, 27 Dec. 2024

Zippered hand and bib pockets also make storing small essentials like sunblock and a lift ticket easy. —Emily Pennington, Outside Online, 23 Oct. 2024

Thinking there had to be a better—and more fun—way to get sunblock on her kids, Lawi came up with the idea behind Sqween. —Vivienne Decker, Forbes, 1 Oct. 2024

Word History

First Known Use

1953, in the meaning defined above

Kids Definition

sunblock

noun

sun·​block -ˌbläk 

: a preparation (as a lotion) applied to the skin to prevent sunburn (as by physically blocking out the sun's rays)

Medical Definition

sunblock

noun

sun·​block ˈsən-ˌbläk 

: 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