1. a poisonous substance that damages or destroys nerve tissue
Usage: medical; scientific

Examples

• The snake’s venom contains a powerful neurotoxin that affects the nervous system.
• Botulinum toxin is a neurotoxin used in small doses for medical treatments.
• Researchers are studying how this neurotoxin blocks nerve signals.
• The spider’s bite injects a neurotoxin that can cause paralysis.
• Scientists discovered a new neurotoxin in the poison dart frog.
• The neurotoxin prevented the transmission of nerve impulses to muscles.