1. A form of penicillin that is not rendered inactive by penicillinase

Type of: penicillin

• Rachycentridae
• Rachycentron
• Rachycentron canadum
• racial
• racial discrimination
• racial extermination
• racial immunity
• racial profiling
• racial segregation
• racialism
• racialist
• racially
• racily
• Racine
• raciness
• racing
• racing boat
• racing car
• racing circuit
• racing gig
• racing shell
• racing skate
• racing skiff
• racing start
• racing yacht