- osteosarcoma
- osteospongioma
- osteosutura
- osteosyntéza, oateosynthesa
- osteotomia
- ostitida
- otagra
- otalgia
- otalgie
- otitida
- otitis media
- otodynia
- otoneuralgia
- otopathia
- otorrhoea
- ovarialgia
- ovariosalpingectomia
- oxymetria
- ozaena
- pacemaker
- pacient
- pachydermie
- pachyleptomeningitis
- pachymeningitis
- pachyperiostitis
- pachyperitonitis
- pachypleuritis
- pachysalpingitis
- pachyvaginitis
- palatální dyslalie
- palatitis
- palatodynia
- palatorrhaphia
- paliace
- paliativní
- paliativní péče
- palimpsest
- pallor mortis
- palpebritis
- palpovat
- panalgia
- panangiitis
- panaritium
- panarteriitis
- panarthritis
- panbronchitis
- pancarditis
- pancreat(ic)ocholecystoanastomosis
- pancreat(ic)ojejunoanastomosis
- pancreatalgia