neurotoxinPronunciation: /ˌnjʊərəʊˈtɒksɪn/Definition of neurotoxin noun a poison which acts on the nervous system. Derivatives neurotoxic adjective neurotoxicityPronunciation: /-tɒkˈsɪsɪti/ noun neurotoxicologyPronunciation: /-tɒksɪˈkɒlədʒi/ noun neurotoxin in other Oxford dictionaries Definition of neurotoxin in the US English dictionary