- Bacillus, Bacilli, B - aerobic rod-shaped spore-producing bacterium; often occurring in chainlike formations; found primarily in soil
--1 is a kind of eubacteria, eubacterium, true bacteria
--1 is a member of genus Bacillus
--1 has particulars:Bacillus anthracis, anthrax; Bacillus subtilis, Bacillus globigii, grass bacillus, hay bacillus; Yersinia pestis