CONTAMINANT Synonyms: 33 Similar and Opposite Words

contaminant

noun

kən-ˈta-mə-nənt

Definition of contaminant

as in contamination

something that is or that makes impure a filter to remove contaminants from the drinking water

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Example Sentences

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.

Recent Examples of contaminant Salmon is the beauty world’s top pick because its DNA is relatively pure, with fewer proteins, peptides and other contaminants mixed in. — Ryan Brennan, Charlotte Observer, 21 Oct. 2026 The report pointed to inconsistent oversight by the Marijuana Enforcement Division and loose state rules around testing marijuana products or contaminants. — Christopher Osher, ProPublica, 21 Oct. 2026 On Paradise food was plentiful and fresh, water devoid of contaminants. — Jeff Spry, Space.com, 21 Oct. 2026 Toxicology testing also revealed that Jackie had environmental contaminants and traces of a rodenticide called brodifacoum in her liver. — ABC News, 15 Oct. 2026 See All Example Sentences for contaminant

Recent Examples of Synonyms for contaminant

Noun

While a crack in a propeller may be visible, contamination inside a motor bearing can be more difficult to detect.

— Prabhat Ranjan Mishra, Interesting Engineering, 26 Oct. 2026
Internal memos among company scientists and executives obtained by The Times reveal that for at least half a century, the plastics industry has been aware of and concerned about the potential for microplastic contamination in the human body.

— Susanne Rust Follow, Los Angeles Times, 26 Oct. 2026

Definition of contamination

Noun

And a study published September isolated the most problematic pollutants by exposing mice to different airborne particles for five hours and then examining their brains.

— Frank Landymore, Futurism, 28 Oct. 2026
That benefit is amplified by the addition of 2% ectoin, a protective ingredient that defends skin against external irritants (like pollutants) and internal stressors (like hormonal changes) alike.

— Deanna Pai, Vogue, 26 Oct. 2026

Definition of pollutant

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contains

contaminant

contaminants

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“Contaminant.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/contaminant. Accessed 3 Nov. 2026.

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Synonyms of contaminant

noun

Example Sentences

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