botulin vs bacterial toxin

botulin and bacterial toxin both are nouns.

Word	Noun	Adjective	Verb	Adverb
botulin	Yes	No	No	No
bacterial toxin	Yes	No	No	No

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

botulin: potent bacterial toxin produced by the bacterium Clostridium botulinum that causes botulism; can be used as a bioweapon
bacterial toxin: any endotoxin or exotoxin formed in or elaborated by bacterial cells

Other hypernyms of botulin include bioarm, biological weapon, bioweapon.

botulin (noun)	bacterial toxin (noun)
potent bacterial toxin produced by the bacterium Clostridium botulinum that causes botulism; can be used as a bioweapon	any endotoxin or exotoxin formed in or elaborated by bacterial cells