[kuh n-tam-uh-nuh nt]
something that contaminates.
Origin of contaminant
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for contaminant
Historical Examples of contaminant
If you have a—a contaminant on board your ship, sir, it didn't come from the Lancet.Contamination Crew
Alan Edward Nourse