impurity
noun
im·pu·ri·ty
(ˌ)im-ˈpyu̇r-ə-tē 
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
Start with a gentle, refreshing cleanser to remove impurities without stripping the skin.
—
Essence, 8 Oct. 2025
The best Korean face washes typically focus on soothing, gentle ingredients, removing surface oils and impurities while melting away makeup and SPF.
—Conçetta Ciarlo, Vogue, 8 Oct. 2025
The sensor is designed to comply with strict metal composition and surface roughness requirements for the semiconductor industry (SEMI F20), helping to ensure that minimal impurities are introduced from the sensor into the manufacturing process.
—Prabhat Ranjan Mishra, Interesting Engineering, 5 Oct. 2025
Stir your fruit and/or veggies around in the mixture to loosen up leftover dirt and impurities.
—Patricia Shannon, Southern Living, 2 Oct. 2025
See All Example Sentences for impurity
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Essence, 8 Oct. 2025
The best Korean face washes typically focus on soothing, gentle ingredients, removing surface oils and impurities while melting away makeup and SPF.
—Conçetta Ciarlo, Vogue, 8 Oct. 2025
The sensor is designed to comply with strict metal composition and surface roughness requirements for the semiconductor industry (SEMI F20), helping to ensure that minimal impurities are introduced from the sensor into the manufacturing process.
—Prabhat Ranjan Mishra, Interesting Engineering, 5 Oct. 2025
Stir your fruit and/or veggies around in the mixture to loosen up leftover dirt and impurities.
—Patricia Shannon, Southern Living, 2 Oct. 2025
See All Example Sentences for impurity
Cite this Entry
“Impurity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/impurity. Accessed 23 Oct. 2025.
Copy CitationKids Definition
impurity
noun
im·pu·ri·ty
(ˈ)im-ˈpyu̇r-ət-ē
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
plural impurities
: something that is impure or makes something else impure
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