A neurotoxin is a substance that can damage or destroy nervous tissue. There are several synonyms for the word "neurotoxin," including nerve poison, nerve agent, neurolysin, neurotropic poison, and nervous system toxin. These terms describe substances that have a toxic effect on nerve tissue, either by direct contact or through bloodstream. Some common sources of neurotoxins include pesticides, industrial chemicals, certain medications, and venom from animals. Neurotoxins can cause a range of symptoms, including paralysis, convulsions, hallucinations, and even death. Understanding the synonyms for "neurotoxin" can help individuals identify potential sources of toxicity and take appropriate measures to avoid exposure.