Poisonous Definition

poizə-nəs
adjective
Containing or being a poison.
Poisonous fumes.
American Heritage Medicine
Capable of injuring or killing by or as by poison; containing, or having the effects of, a poison; toxic; venomous.
Webster's New World
Full of ill will; malicious or spiteful.
A poisonous look.
American Heritage
Harmful or destructive.
A poisonous precedent.
American Heritage

Origin of Poisonous

  • From poison +"Ž -ous

    From Wiktionary

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poisonous