Bacterium and Bacillus

Bacterium noun - (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants.

Bacillus is a synonym for bacterium in bacteria topic. In some cases you can use "Bacillus" instead a noun "Bacterium", when it comes to topics like micro-organism.

Nearby Word: bacterial

Bacillus noun - Aerobic rod-shaped spore-producing bacterium; often occurring in chainlike formations; found primarily in soil.

Bacterium is a synonym for bacillus in bacteria topic. You can use "Bacterium" instead a noun "Bacillus", if it concerns topics such as micro-organism.