botulismotoxin vs botulin

botulismotoxin and botulin both are nouns.

Word	Noun	Adjective	Verb	Adverb
botulismotoxin	Yes	No	No	No
botulin	Yes	No	No	No

As nouns, botulismotoxin and botulin are synonyms defined as:

botulismotoxin and botulin: potent bacterial toxin produced by the bacterium Clostridium botulinum that causes botulism; can be used as a bioweapon

Other synonyms of botulismotoxin include botulinus toxin.

botulismotoxin (noun)	botulin (noun)
potent bacterial toxin produced by the bacterium Clostridium botulinum that causes botulism; can be used as a bioweapon	potent bacterial toxin produced by the bacterium Clostridium botulinum that causes botulism; can be used as a bioweapon