contaminant

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The researchers discovered that an environmental contaminant called diethanolamine, or DEA, can sometimes replace a sugar alcohol in a molecule produced by M. morganii in the gut.

From Science Daily • Apr. 25, 2026

He said the research shows “that contaminant levels on aircraft are generally low and that health and safety standards are met.”

From The Wall Street Journal • Sep. 14, 2025

The bacteria Bacillus cereus was found to be the contaminant in the cause of all three deaths.

From BBC • Nov. 19, 2024

Consumer Reports’ findings come decades after perchlorate was first identified as a contaminant in water and food.

From Salon • Aug. 8, 2024

Harvard’s Robert Chang—whose widely used Chang Liver Cell line was listed as a HeLa contaminant on Gartler’s chart —glared from his seat.

From "The Immortal Life of Henrietta Lacks" by Rebecca Skloot