Definition of contaminate
- Bacteria contaminated the wound.
- iron contaminated with phosphorus
- water contaminated by sewage
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Be careful not to allow bacteria to contaminate the wound.
Don't touch the microchip or the oil on your hands will contaminate it.
Make sure the white paint is not contaminated by any of the other colors.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'contaminate.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
: to make (something) dangerous, dirty, or impure by adding something harmful or undesirable to it
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