contaminate
verb (used with object)
to make impure or unsuitable by contact or mixture with something unclean, bad, etc..
has been contaminating
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present perfect progressiveof contaminate (3rd person singular).present perfect progressive
Used to describe an action that began in the past, has continued continuously, and is still in progress.
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.
Coast Guard achieved a major milestone last week, finally containing an oil spill that has been contaminating the Gulf of Mexico for nearly 15 years.
From Washington Times ● May 22, 2019
