Meaning & Definition of word "Poisonous"

to

arrow

    Poisonous

    /ˈpɔɪ.zən.əs/

    adjective:

    • 1. capable of causing illness or death, especially by absorbing or consuming poison.
      • Example: The plant's bright berries are highly poisonous and should not be eaten.
    • 2. containing or being a poison; toxic.
      • Example: Certain mushrooms are known to be poisonous, and it's important to identify them correctly.
    • 3. harmful or detrimental to health.
      • Example: The spill from the factory released poisonous chemicals into the river.
    • 4. malicious or full of spite.
      • Example: His poisonous attitude made it difficult for anyone to work with him.

    Etymology

    Middle English, from Old French 'poison', from Latin 'potionem' meaning a drink or potion.

    Common Phrases and Expressions

    poisonous gas:

    A gas that is toxic to humans or animals.

    poisonous relationship:

    A relationship that is emotionally harmful and toxic.

    poisonous plant:

    A plant that contains harmful substances.

    Related Words

    toxin:

    A poisonous substance produced by a living organism.

    venom:

    A toxic substance secreted by certain animals, notably snakes and insects.

    antidote:

    A substance that counteracts a poison.

    Slang Meanings of poisonous

    Meaning: Extremely negative or harmful behavior.

    Example Sentence: Her gossiping is really poisonous, it just spreads negativity.

    Meaning: Someone or something that brings harm to a group or situation.

    Example Sentence: He's a poisonous influence on the team; we need to make a change.