poisonous


poi·son·ous

adjective \ˈpiz-nəs, ˈpi-zən-əs\

: causing sickness or death by entering or touching the body : containing poison

: capable of putting poison into another animal's body by biting it

: very harmful or unpleasant

Full Definition of POISONOUS

2
:  having the properties or effects of poison :  venomous
3
poi·son·ous·ly adverb

Examples of POISONOUS

  1. Chocolate is poisonous to dogs.
  2. This species of spider is extremely poisonous.

First Known Use of POISONOUS

1565

poi·son·ous

adjective \ˈpiz-nəs, -ən-əs\   (Medical Dictionary)

Medical Definition of POISONOUS

: having the properties or effects of poison : venomous

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