as in contamination
something that is or that makes impure
a filter to remove contaminants from the drinking water
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Recent Examples of contaminant
Standard soil testing labs can screen for lead (and other heavy metals, at an additional cost), but testing for other contaminants is comparatively more expensive.
—
Miri Talabac, Baltimore Sun, 9 Jan. 2026
Its results differed from the state’s for some varieties tested, including Similac’s Soy Isomil, which was contaminant-free in Consumer Reports’ testing but had some heavy metals in the state’s.
—Katelyn Ferral, Sun Sentinel, 9 Jan. 2026
Even if the sources of some contaminants, like PFAS, were removed from the water supply at their source, the drugs would likely still be found in the water.
—Owen Clarke, Outside, 9 Jan. 2026
The Cobb-Marietta water authority is planning to conduct a study in 2026 to identify better ways to treat MIB and other potential contaminants.
—Sheeka Sanahori - For The Ajc, AJC.com, 9 Jan. 2026
See All Example Sentences for contaminant
Miri Talabac, Baltimore Sun, 9 Jan. 2026
Its results differed from the state’s for some varieties tested, including Similac’s Soy Isomil, which was contaminant-free in Consumer Reports’ testing but had some heavy metals in the state’s.
—Katelyn Ferral, Sun Sentinel, 9 Jan. 2026
Even if the sources of some contaminants, like PFAS, were removed from the water supply at their source, the drugs would likely still be found in the water.
—Owen Clarke, Outside, 9 Jan. 2026
The Cobb-Marietta water authority is planning to conduct a study in 2026 to identify better ways to treat MIB and other potential contaminants.
—Sheeka Sanahori - For The Ajc, AJC.com, 9 Jan. 2026
See All Example Sentences for contaminant
Recent Examples of Synonyms for contaminant
Noun
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Even some homes that remain standing are unlivable due to smoke, ash and asbestos contamination.—
Sarah Alegre,
FOXNews.com,
12 Jan. 2026
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The project involves removing asbestos and lead contamination, updating the facilities to be compliant with accessibility laws, and upgrading electrical and ventilation systems.—
Miranda Jeyaretnam,
Time,
12 Jan. 2026
Noun
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Semiconductor manufacturing requires huge amounts of ultra-clean water to rinse residue from silicon chips during the fabrication process, resulting in wastewater that contains pollutants, including heavy metals, which can be toxic to aquatic ecosystems and humans.—
Angela Palermo,
Idaho Statesman,
7 Jan. 2026
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Now, its ability to do that for many air pollutants is under threat.—
Lisa Song,
ProPublica,
7 Jan. 2026
Cite this Entry
“Contaminant.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/contaminant. Accessed 13 Jan. 2026.
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