sunblock
Americannoun
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a substance that provides a high degree of protection against sunburn, often preventing most tanning as well as burning, as by obstructing the penetration of ultraviolet rays.
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a lotion, cream, etc., containing such a substance.
Etymology
Origin of sunblock
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Products passing through the giant site range from insulin capsules and lifestyle drugs to medicated sunblock and drums of sulphuric acid.
From Barron's • Apr. 5, 2026
Darker skin tones, prevalent in equatorial regions, serve as nature's very own sunblock, evolving over millennia to shield these populations from the sun's intense ultraviolet radiation.
From Science Daily • Jan. 12, 2024
The money he earns from begging is rarely enough to cover his meals and rent, let alone the sunblock and glasses he needs to protect his sensitive skin and eyes.
From BBC • Sep. 4, 2023
“Have a lot of water, sun protection, sunblock, a speaker is a must for music, a portable charger, because your phone will die halfway through the day.”
From Los Angeles Times • Aug. 30, 2023
Kendra set her towel and mirror on the table and grabbed a bottle of sunblock.
From "Fablehaven" by Brandon Mull
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
