Definitions

1. noun

A type of rod-shaped bacterium, often pathogenic, typically found in soil, water, or the intestines of animals.

“The scientist isolated a bacillus from the patient’s sample and identified it as the cause of the disease.”

2. noun

A genus of rod-shaped bacteria, often used as a model organism in microbiological research.

“The researchers studied the genetics of Bacillus subtilis to understand its unique characteristics.”