| Apoplexie | apoplexy |
| Apoplexia | apoplexy |
| Apoplex | stroke apoplexy |
| Apophänie | apophenia |
| Apoleis | apoleis |
| Apologie | apology apologia |
| Asplenie | asplenia |
| Anorexie | anorexia anorexia nervosa |
| Apollonia | Apollonia |
| Apomixis | apomixis |
| Apophis | Apophis |
| Apostelin | apostle |
| Apoptose | apoptosis |
| Aporetik | aporetic |
| Aporie | aporia |
| Apostasie | apostasy |
| Apotheke | pharmacy drugstore chemist's chemist's shop |
| Apotheose | apotheosis |
| Hypoplasie | hypoplasia |
| Neoplasie | neoplasm |