neurotoxin vs toxin

neurotoxin and toxin both are nouns.

Word	Noun	Adjective	Verb	Adverb
neurotoxin	Yes	No	No	No
toxin	Yes	No	No	No

As nouns, toxin is a hypernym of neurotoxin; that is, toxin is a word with a broader meaning than neurotoxin:

neurotoxin: any toxin that affects neural tissues
toxin: a poisonous substance produced during the metabolism and growth of certain microorganisms and some higher plant and animal species

neurotoxin (noun)	toxin (noun)
any toxin that affects neural tissues	a poisonous substance produced during the metabolism and growth of certain microorganisms and some higher plant and animal species