poisonous
Americanadjective
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full of or containing poison.
poisonous air; a poisonous substance.
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harmful; destructive.
poisonous to animals; poisonous rumors.
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deeply malicious; malevolent.
poisonous efforts.
adjective
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having the effects or qualities of a poison
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capable of killing or inflicting injury; venomous
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corruptive or malicious
Other Word Forms
- nonpoisonous adjective
- nonpoisonously adverb
- nonpoisonousness noun
- poisonously adverb
- poisonousness noun
- semipoisonous adjective
- semipoisonously adverb
- unpoisonous adjective
- unpoisonously adverb
Etymology
Origin of poisonous
Compare meaning
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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.
Perhaps, but it also gave an immediacy bordering on desperation to a story of teenage identity, poisonous social media and murder.
Part of the reasoning in 2018 was site investigations found the ground underlain with peat deposits, as well as toxic and phytotoxic - meaning poisonous to plants - risk from shallow soils.
From BBC
Its poisonous thorns also injure livestock, leaving them too weak to roam for food, he added.
From Barron's
Promotion of knowledge and understanding has given way to inculcation of a poisonous fringe ideology.
The scientists discovered that the reaction between hydrogen sulfide -- a poisonous gas -- and solid iron minerals is not only a chemical process, but also a biological one.
From Science Daily
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.