toxin

noun

  1. A poisonous substance that is a specific product of the metabolic activities of a living organism and is usually very unstable, notably toxic when introduced into the tissues, and typically capable of inducing antibody formation

noun

  1. A neurotoxin formed by botulinum that causes botulism and that is injected in a purified form for therapeutic and cosmetic purposes (as to treat blepharospasm and reduce wrinkles)

noun

  1. A small amount of poison found in air, water, food, etc.

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