| Radioastronomie | radio astronomy |
| Astronomie | astronomy |
| Gastronomie | gastronomy catering |
| Radiosonde | radio altimeter |
| Astronomin | astronomer |
| Gastronomin | restaurateur |
| Nationalökonomie | economics |
| Radiochemie | radiochemistry |
| Radiographie | radiography |
| Radioisotop | radioisotope |
| Radiolarie | radiolarian |
| Radiotaste | radio button |
| Radiotelescopie | radiotelescopy |
| Prädikatsnomen | predicate |
| Radiation | adaptive radiation |
| Radiobutton | radio button |
| Radiologie | radiology |
| Radioröhre | thermionic valve |
| Radiotherapie | radiotherapy |
| radioaktiv | radioactive |