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Definitions

poisonous

[poi-zuh-nuhs] / ˈpɔɪ zə nəs /


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.

"The idea is to divide Russia from the outside world," says columnist Andrei Kolesnikov, from opposition outlet Novaya Gazeta, because of the belief that "this world is poisonous to the brains of Russians".

From BBC • Apr. 24, 2026

In this poisonous time, those who grin at the notion of playing a Traitor may think twice about the potential cost to their principles.

From Salon • Jan. 28, 2026

The poisonous toxins from the death cap can result in a delayed gastrointestinal symptoms that may not appear until 6 to 24 hours after eating it.

From Los Angeles Times • Jan. 16, 2026

Hydrogen cyanide, which is highly poisonous, can freeze into crystals at low temperatures.

From Science Daily • Jan. 16, 2026

By the end of the war, scientists in Europe uncovered evidence that it was germs, not poisonous miasma, that attacked the body.

From "Ambushed!" by Gail Jarrow




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