anthrax bacillus vs bacillus

anthrax bacillus and bacillus both are nouns.

Word	Noun	Adjective	Verb	Adverb
anthrax bacillus	Yes	No	No	No
bacillus	Yes	No	No	No

As nouns, bacillus is a hypernym of anthrax bacillus; that is, bacillus is a word with a broader meaning than anthrax bacillus:

anthrax bacillus: a species of bacillus that causes anthrax in humans and in animals (cattle and swine and sheep and rabbits and mice and guinea pigs); can be used a bioweapon
bacillus: aerobic rod-shaped spore-producing bacterium; often occurring in chainlike formations; found primarily in soil

Other hypernyms of anthrax bacillus include B, bioarm, biological weapon, bioweapon.

anthrax bacillus (noun)	bacillus (noun)
a species of bacillus that causes anthrax in humans and in animals (cattle and swine and sheep and rabbits and mice and guinea pigs); can be used a bioweapon	aerobic rod-shaped spore-producing bacterium; often occurring in chainlike formations; found primarily in soil