bacillus ba·cil·lus (bə-sĭl'əs)
n. pl. ba·cil·li (-sĭl'ī')
Any of various rod-shaped, usually gram-positive aerobic bacteria of the genus Bacillus that often occur in chains and include Bacillus anthracis, the causative agent of anthrax.
Any of various bacteria, especially a rod-shaped bacterium.
Bacillus (bə-sĭl'əs)
n.
A genus of rod-shaped gram-positive bacteria capable of producing endospores.
| bacillus (bə-sĭl'əs) Pronunciation Key
Plural bacilli (bə-sĭl'ī') Any of various pathogenic bacteria, especially one that is rod-shaped. |