noun
- a substance that makes something impure or harmful by its presence
Examples
- The water supply was tested for bacterial contaminants.
- Industrial waste is a major contaminant in the river.
- Scientists found traces of a chemical contaminant in the soil.
- The lab identified several contaminants in the food sample.
- Air filters help remove contaminants from indoor environments.
- Heavy metals are dangerous contaminants in drinking water.