poisonous Definition

poisonous
adj

1. Liable to cause injury or death if swallowed, inhaled or absorbed by the skin.

Thesaurus: venomous, lethal, toxic, noxious, fatal, deadly, virulent, mephitic, mortal, virose.
2. Containing or capable of injecting a poison.

Example: poisonous snakes
3. colloq
Said of a person, remark, etc: malicious. See also venomous.

Derivative: poisonously
adverb

Derivative: poisonousness
noun