Thesaurus.com
Dictionary.com
Showing results for poisonous. Search instead for poisonou.
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.

It’s got poisonous lead in it from paint.

From Salon • Mar. 6, 2026

In the past three months, California has seen a sudden uptick in the number of people becoming sickened and dying after accidentally eating poisonous mushrooms found in the wild.

From Los Angeles Times • Feb. 8, 2026

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

From Science Daily • Jan. 16, 2026

Once “destined for great things,” Lila makes a poisonous marriage that she eventually escapes by leaving to work in a factory.

From The Wall Street Journal • Dec. 26, 2025

The poisonous coral snake is bright yellow and red.

From "Death on the River of Doubt" by Samantha Seiple