1. Bacteria that are unaffected by penicillin

Type of: bacteria, bacterium

• nullified
• nullifier
• nullify
• nullipara
• nulliparous
• nullity
• numb
• numbat
• number
• number 1
• number agreement
• number cruncher
• number crunching
• number one
• number one wood
• number representation system
• number system
• number theorist
• number theory
• number two
• numbering
• numberless
• numberplate
• numbers
• numbers game