- primatologically
- primaxin
- Primera Air Nordic
- primeur
- primeurs
- prime factorisation
- prime violinist
- principal violinist
- primidolol
- primitive pit
- primitive knot
- primitive node
- primitive reaction
- primitive groove
- primitive line
- primitive streak
- prime model
- primordial nucleosynthesis
- primordial cyst
- Primrose Hill
- Primus von Quack
- prime gap
- prime number theorem , PNT
- primary biliary cholangitis , PBC
- primary biliary cirrhosis , PBC
- primary sclerosing cholangitis , PSC
- primary cerebral lymphoma
- primary infection
- primary abbey
- primary collimator
- primary amebic meningoencephalitis , PAM, PAME
- primary amebic meningo-encephalitis , PAM, PAME
- primary amoebic meningo-encephalitis, PAM, PAME
- primary amoebic meningoencephalitis, PAM, PAME
- primary cardiomyopathy
- primary ciliary dyskinesia , PCD
- primary research
