NOR-P1 - odontotomy
- Northern blot analysis
- Northern blot hybridization
- Northern blot analysis
- northern cattle grub
- northern fowl mite
- northern rat flea
- Norton
- nortriptyline
- nortriptyline hydrochloride
- Norum-Gjone disease
- NORV
- norvaline
- Norvasc
- Norvir
- Norwalk gastroenteritis
- Norwalk gastroenteritis virus
- Norwalk virus
- Norwalk-like virus
- Norway rat
- Norwood procedure
