"бол - Абел
- O-антиген
- Onchocerca volvulus
- Ornithodoros
- Ornithodoros MOUBATA
- Ornithodoros PAPILLIPES
- Ornithodoros VERRUCUSUS
- osteopathia hyperostotica
- osteosis eburnisans
- osteotomia medicata
- Ostertagia
- ovotestis
- Paederus
- Paracoccidioides braziliensis
- paracusis willisii
- Paragonimus westermanii
- paranoia inventoria
- paroophoron
- partus conduplicato corpore
- PAS-
- patella natans
- pavor nocturnus
- Pediculus humanus capitis
- Pediculus humanus vestimenti
- pemphigus
- Penicillium
- Pentatrichomonas hominis
- Peptostreptococcus anaerobicus
- perspiratio insensibilis
- perspiratio sensibilis
- pes equinovarus
- petit mal
- pH
- pH-
- Phlebotomus
- Phlebotomus argentipes
- Phlebotomus caucasicus
- Phlebotomus chinensis
- Phlebotomus papatasii
- Phlebotomus perniciosus
- Phlebotomus sergenti