CONTAMINANT Synonyms: 33 Similar and Opposite Words

contaminant

noun

kən-ˈta-mə-nənt

Definition of contaminant next

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 However, some people, who may be more sensitive to the effects of mercury and other contaminants, should consider limiting their intake. —

Anna Giorgi, Verywell Health, 2 Apr. 2026 The Safe Drinking Water Act (SDWA) requires the EPA to establish contaminants on this list that public water suppliers must monitor but that are not already regulated. —

Lauren J. Young, Scientific American, 2 Apr. 2026 Hazards such as lead and other heavy metals, contaminants like PFAS and forever chemicals may be found in water throughout Indiana. —

Karl Schneider, IndyStar, 31 Mar. 2026 About one‑third of liquid formulas and more than half powdered formulas earned top ratings for having very low or undetectable levels of arsenic, lead and other contaminants. —

Jenni Fink, MSNBC Newsweek, 31 Mar. 2026 See All Example Sentences for contaminant

Recent Examples of Synonyms for contaminant

Noun

Scientists are tightening research protocols, adopting contamination controls from forensic science to ensure findings are real, not lab artifacts.

— Susanne Rust Follow, Los Angeles Times, 5 Apr. 2026
Not all 87 candidates are expected to be confirmed, however, as some detections have lower confidence due to background contamination from unrelated stars, the researchers say.

— Sharmila Kuthunur, Space.com, 5 Apr. 2026