noun
- a rod-shaped bacterium
Usage: biology
Examples
- The scientist observed bacilli under the microscope.
- Some bacillus species can cause food poisoning.
- The lab identified a harmful bacillus in the water sample.
- Bacillus anthracis is the bacterium that causes anthrax.
- The bacillus multiplied rapidly in the warm environment.
- Researchers studied how the bacillus responds to antibiotics.