| Arthroplastik | arthroplasty |
| Autoplastik | autoplasty |
| Arthropathie | arthropathy |
| Anthropomatik | anthropomatics |
| Mikroplastik | microplastics |
| Rhinoplastik | rhinoplasty |
| Arthrologie | arthrology |
| Anthroponomastik | anthroponymy |
| Astrophysik | astrophysics |
| Xenoplastik | xenoplasty |
| Scholastik | scholasticism |
| Astronautik | astronautics |
| Arthritis | arthritis |
| arthrotisch | arthrotic |
| Arthropoda | arthropods |
| Arthropode | arthropod |
| Arthrose | osteoarthritis arthrosis osteoartrit |
| Arthroskopie | arthroscopy |
| Orthoklas | orthoclase |
| Orthoptist | orthoptist |