Neurotoxin
WordNet
noun
(1) Any toxin that affects neural tissues
WiktionaryText
Etymology
From "sinew, tendon" and toxicum "poison" < (toxikon (pharmakon)) "(poison) for use on arrows" < (toxikos) "pertaining to arrows or archery" < (toxon) "bow"
Noun
- A toxin that specifically acts upon neurons, their synapses, or the nervous system in its entirety.