impurity

noun

im·​pu·​ri·​ty (ˌ)im-ˈpyu̇r-ə-tē How to pronounce impurity (audio)
plural impurities
1
: something that is impure or makes something else impure
removing impurities from water
2
: the quality or state of being impure

Examples of impurity in a Sentence

the impurity of the water The syrup is strained to remove impurities. The water is free of impurities.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The oil molecules in seeds also break apart and create impurities that affect how the oils crystallize when they’re cooled. Katarina Zimmer, Smithsonian Magazine, 2 May 2025 The key is striking a balance between gentle yet clarifying formulas that thoroughly rid the skin of its impurities without stripping and causing further irritation. Conçetta Ciarlo, Vogue, 11 Apr. 2025 These Rael Pimple Patches—Miracle Overnight Spot Cover, $19.99 on Amazon, are hydrocolloid patches designed to stay on through the night and protect blemishes from pillow germs while gently absorbing impurities. Nora Colomer, Fox News, 13 Mar. 2025 The agency also closely oversees the production of synthetic food dyes, checking for impurities that might result in a safety risk. Paula Cohen, CBS News, 22 Apr. 2025 See All Example Sentences for impurity

Word History

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of impurity was in the 15th century

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Cite this Entry

“Impurity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/impurity. Accessed 19 May. 2025.

Kids Definition

impurity

noun
im·​pu·​ri·​ty (ˈ)im-ˈpyu̇r-ət-ē How to pronounce impurity (audio)
plural impurities
1
: the quality or state of being impure
2
: something that is impure or that makes impure
remove impurities from water

Medical Definition

impurity

noun
im·​pu·​ri·​ty (ˈ)im-ˈpyu̇r-ət-ē How to pronounce impurity (audio)
plural impurities
: something that is impure or makes something else impure

More from Merriam-Webster on impurity

Last Updated: - Updated example sentences
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