English dictionary poisonous substance meaning and definition Definition and meaning of poisonous substance at MeaningMonkey.org. poisonous substance meaning and definition in the English Dictionary. POISONOUS SUBSTANCE nounDefinition of poisonous substance (noun)any substance that causes injury or illness or death of a living organismsynonyms: poison, toxicant Source: Princeton University Wordnet
If you find this page useful, share it with others! It would be a great help. Thank you! Link to this page:
