The phrase "potent neurotoxin" means a powerful substance that can harm or poison the nervous system in our body, which controls our thoughts, movements, and senses. Full definition
It is a highly potent neurotoxin which is dangerous for all humans, and is most dangerous when people are exposed to lead as young children. (frankellawfirm.com)
Adding to their intrigue, many species of Brachycephalus are beautifully hued, likely as a warning to predators that their skin harbors a highly potent neurotoxin known as tetrodotoxin. (treehugger.com)
Fluorophosphate esters are among the most potent neurotoxins known. (en.wikipedia.org)