Origin: Latin suffix -al
Bacterial has 2 different meanings across 1 category:
Of, relating to, or caused by bacteria.
"The bacterial infection was treated successfully after taking a full course of antibiotics."
In plain English: Bacterial describes anything related to tiny living organisms called bacteria that can make you sick if they get into your body.
"The doctor warned that eating undercooked meat could give you a bacterial infection."
Bacterial comes from combining bacteria with the suffix -al. This formation was created to describe anything related to or caused by these microscopic organisms.