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has poisoned
  • present perfect of poison (3rd person singular).

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.

Leo condemned "a deadly mix of obscure interests and indifference toward the common good, which has poisoned the natural and social environment".

From Barron's • May 23, 2026

Social media has poisoned adolescence, and digital technology has widened the gulf between children and parents.

From The Wall Street Journal • Mar. 13, 2026

“My family tree has poisoned roots,” Cecily says.

From Los Angeles Times • Sep. 3, 2024

Set in Taranto, an Italian port city where a contamination disaster has poisoned the area and caused the remaining residents to scrabble for survival, the story focuses on two orphans.

From New York Times • May 19, 2022

Maybe his fever is returning; maybe the sludge they drank in the hotel cellar has poisoned him.

From "All the Light We Cannot See" by Anthony Doerr