plural contaminants
: something that makes a place or a substance (such as water, air, or food) no longer suitable for use : something that contaminates a place or substance
a water contaminant
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“Contaminant.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/contaminant. Accessed 23 Jun. 2026.
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