| Apoptose | apoptosis |
| apoptogen | apoptogenic |
| Apophis | Apophis |
| Apokope | apocope |
| Apostasie | apostasy |
| Apotheose | apotheosis |
| Optode | optode |
| Amitose | amitosis |
| Athetose | athetosis |
| Hämopoese | hematopoiesis |
| Aprikose | apricot |
| Apollo | Apollo |
| Apollon | Apollo |
| Apophänie | apophenia |
| Apoplexie | apoplexy |
| Apostille | apostille |
| Apostolat | apostolate |
| Apoleis | apoleis |
| Apologet | apologist |
| Apologie | apology apologia |