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    Poi·son·ous
    /ˈpoizənəs/

    adjective

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  3. very harmful and able to cause illness or death: poisonous chemicals. Can you tell the difference between poisonous mushrooms and edible varieties? Synonym. toxic (POISONOUS) B2. A poisonous animal or insect uses poison in order to defend itself: a poisonous snake. Synonym. venomous (POISON) very unpleasant and unkind:

  4. 1 causing death or illness if swallowed or absorbed into the body synonym toxic poisonous chemicals/plants This gas is highly poisonous. The leaves of certain trees are poisonous to cattle.

  5. adjective. /ˈpɔɪzənəs/ causing death or illness if swallowed or taken into the body synonym toxic. poisonous chemicals/fumes/plants. a poisonous substance. This gas is highly poisonous. poisonous to somebody/something The leaves of certain trees are poisonous to cattle. Topics The environment b1. Oxford Collocations Dictionary. Want to learn more?

  6. adjective. uk / ˈpɔɪz ə nəs / us. poisonous adjective (WITH POISON) Add to word list. B2. containing poison: poisonous gas. poisonous adjective (ANIMAL) B2. A poisonous animal uses poison in order to defend itself: a poisonous snake. (Definition of poisonous from the Cambridge Learner's Dictionary © Cambridge University Press)

  7. poisonous meaning: 1. containing poison: 2. A poisonous animal uses poison in order to defend itself: . Learn more.

  8. Apr 15, 2024 · Containing sufficient poison to be dangerous to touch or ingest . Synonyms: poisoned, toxic, venomous, (dialectal or archaic) attery. Antonyms: nonpoisonous, unpoisonous. While highly poisonous to dogs, this substance is completely harmless if ingested by humans.

  9. Meanings. Synonyms. Sentences. Definition Source. Origin. Adjective. Filter. adjective. Containing or being a poison. Poisonous fumes. American Heritage Medicine. Similar definitions. Capable of injuring or killing by or as by poison; containing, or having the effects of, a poison; toxic; venomous. Webster's New World. Similar definitions.

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