Definitions

1. noun

A substance that contaminates or pollutes something, such as air, water, or food.

“The factory’s waste became a contaminant in the nearby river.”

2. noun

An agent or means of contamination, such as a virus or a chemical substance.

“The contaminated soil was a result of years of industrial waste.”

3. noun

A person or thing that contaminates something, such as a social contaminant in a community.

“The social contaminant of racism led to many social problems in the community.”