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
For consumers, the best choice is a reverse osmosis system, which forces water through a semipermeable membrane that captures up to 99% of contaminants, Jones said.
—
Sandee Lamotte, CNN Money, 23 Apr. 2026
Some options are considered a great catch, boasting superior benefits, while those high in mercury or contaminants may fall to lower rungs—or should be avoided altogether.
—Randi Gollin, Martha Stewart, 22 Apr. 2026
Sterile mixes prevent seed loss from soil contaminants, improve drainage, and have a fine texture easier for seeds to break through.
—Barbara Gillette, The Spruce, 20 Apr. 2026
Even trace contaminants, sometimes from dust or building materials, can cause products to fail testing.
—Jasmine Arenas, CBS News, 19 Apr. 2026
See All Example Sentences for contaminant
Sandee Lamotte, CNN Money, 23 Apr. 2026
Some options are considered a great catch, boasting superior benefits, while those high in mercury or contaminants may fall to lower rungs—or should be avoided altogether.
—Randi Gollin, Martha Stewart, 22 Apr. 2026
Sterile mixes prevent seed loss from soil contaminants, improve drainage, and have a fine texture easier for seeds to break through.
—Barbara Gillette, The Spruce, 20 Apr. 2026
Even trace contaminants, sometimes from dust or building materials, can cause products to fail testing.
—Jasmine Arenas, CBS News, 19 Apr. 2026
See All Example Sentences for contaminant
Recent Examples of Synonyms for contaminant
Noun
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Neighbors were still without water in one Mountain View neighborhood on Sunday after a mistake at a construction site on Friday caused possible contamination, and neighbors are waiting for tests to reveal whether the water is safe for use.—
John Ramos,
CBS News,
27 Apr. 2026
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Around 5,000 thyroid cancers have been linked to iodine contamination of milk supplies by the accident, 15 of them fatal.—
The Week UK,
TheWeek,
26 Apr. 2026
Noun
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Health dangers of pollution Ozone and particle pollution are considered two of the most widespread and dangerous pollutants measured by the US Environmental Protection Agency.—
Jen Christensen,
CNN Money,
22 Apr. 2026
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Trees and plants sequester carbon dioxide from the atmosphere, filter pollutants from the air and reduce urban temperatures through shade, according to The Nature Conservancy.—
Julia Jacobo,
ABC News,
22 Apr. 2026
Cite this Entry
“Contaminant.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/contaminant. Accessed 3 May. 2026.
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