contamination

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.

By combining microscopy, chemical analysis, and protein sequencing, the team aimed to rule out contamination and strengthen the case that the molecules were original to the dinosaur itself.

From Science Daily • May 14, 2026

France is mulling two ways to help: testing people to get a better measure of how widespread contamination is, and regulating fertilisers to limit new cadmium entering soils.

From Barron's • May 13, 2026

She also noted the risk of contamination and a lack of dosing standardization, which apply to all peptides people are buying online without prescriptions.

From The Wall Street Journal • May 11, 2026

So how do they know if what they’re finding is in the sample or contamination from plastic fibers floating in the air?

From Los Angeles Times • May 1, 2026

For younger samples–those under twenty thousand years or so–slight contamination does not always matter so much, but for older samples it can be a serious problem because so few remaining atoms are being counted.

From "A Short History of Nearly Everything" by Bill Bryson