poisonous
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.
One of laetrile’s components is cyanide, which its proponents claimed was poisonous to cancer cells while sparing the rest of the body.
From Slate ● Nov. 12, 2026
Although best known as a poisonous gas produced by sources such as gasoline engines, carbon monoxide is also generated naturally by many types of cancer cells.
From Science Daily ● Nov. 4, 2026
Indonesia's government says tens of thousands of personnel are fighting the fires, but the air in Palangkaraya remains poisonous, with the haze turning the sky apocalyptic orange in the late afternoon.
From Barron's ● Oct. 15, 2026
He announced that the UK would set up a new centre to "stem the poisonous tide" of disinformation.
From BBC ● Oct. 11, 2026
“Jellyfish are really mysterious to me. The most poisonous one in the world is the size of a gnat or something.”
From "Ivy Aberdeen’s Letter to the World" by Ashley Herring Blake
Vocabulary lists containing poisonous
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Harmful, List 2
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-ious, -eous, -ous
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