contaminant

noun

con·​tam·​i·​nant kən-ˈta-mə-nənt 

: something that contaminates

Synonyms of contaminant

• contamination
• pollutant

Examples of contaminant in a Sentence

a filter to remove contaminants from the drinking water

Recent Examples on the Web

The upscale outdoor mall survived the Palisades fire, but needed refurbishment to eliminate any potential contaminants from the blaze. — Samantha Masunaga, Los Angeles Times, 13 Oct. 2026

The property invested in a water and sewage plant that ensures no contaminants enter the ocean, plus gives detailed training to all staff on sustainability practices. — Condé Nast, Condé Nast Traveler, 6 Oct. 2026

One recall even involved a potential pest contaminant in a jar of peppers. — Sacbee.com, 2 Oct. 2026

The scientists created a single-step co-pyrolysis process to convert agricultural waste into an amphoteric absorbent that can remove contaminants from synthetic dyes. — Jennifer Bringle, Footwear News, 2 Oct. 2026

Word History

Etymology

contamin(ate) + -ant entry 1

First Known Use

1922, in the meaning defined above

Kids Definition

contaminant

noun

con·​tam·​i·​nant kən-ˈtam-ə-nənt 

: something that contaminates

Medical Definition

contaminant

noun

con·​tam·​i·​nant kən-ˈtam-ə-nənt 

: something that contaminates