Definitions

1. noun

A person or thing that contaminates something, especially the environment or a substance.

“The chemical plant was fined for its role in hiring a contaminator who released toxic waste into the nearby river.”

2. verb

To make something impure or polluted, especially the environment or a substance.

“The company’s poor waste management practices contaminated the soil and water, prompting a lawsuit.”

3. noun

A substance or agent that contaminates something, especially the environment or a substance.

“The researchers studied the effects of a new contaminator on the local ecosystem.”