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toxicant

/ˈtɒksɪkənt/ noun

Latin root: toxicāns Wiktionary

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about toxicant at Wordnik → Where our words come from →

  1. Any substance that causes injury or illness or death of a living organism.

adjective

  1. Having the qualities or effects of a poison.

Origin

From Medieval Latin toxicāns, toxicant-, present participle of toxicāre (“to poison”).

From Wiktionary, via Kaikki.org (CC BY-SA)