Microbiology

noun an antibiotic drug used to treat various bacterial infections

• Penicillin is a type of antibiotic used to treat bacterial infections.
• My doctor prescribed me some penicillin for my strep throat.
• I need to pick up some penicillin from the pharmacy for this infection.
• His words were like penicillin, healing the wounds of their argument.

noun a slang term for a casino

• The Clean Air Zone (CAZ) policy aims to reduce air pollution in urban areas.
• I heard they're implementing a CAZ in the city to improve air quality.
• The CAZ is all about keeping the air clean for everyone to breathe.
• The CAZ is like a shield protecting us from harmful pollutants in the air.