1. Unaffected by penicillin
   "penicillin-resistant bacteria"

See also: penicillin

• rapeseed oil
• Raphael
• Raphanus
• Raphanus raphanistrum
• Raphanus sativus
• Raphanus sativus longipinnatus
• raphe
• raphia
• Raphicerus
• Raphicerus campestris
• Raphidae
• Raphidiidae
• Raphus
• Raphus cucullatus
• rapid
• Rapid City
• rapid climb
• rapid eye movement
• rapid eye movement sleep
• rapid growth
• rapid transit
• rapid-fire
• rapidity
• rapidly
• rapidness