| Radioapparat | radio receiver |
| Rasierapparat | shaver razor |
| Fotoapparat | camera |
| Radicalwort | primitive |
| Radiolarie | radiolarian |
| Radioopazität | radiodensity |
| Adiaphora | adiaphora adiaphoron |
| Apparat | apparatus appliance accessory |
| Golgi-Apparat | Golgi apparatus Golgi Golgi body Golgi complex |
| Heftapparat | stapler |
| Hörapparat | hearing aid |
| disparat | disparate |
| Radikaler | radical |
| Radio Eriwan | Radio Yerevan |
| Radioempfänger | radio |
| Radiotaste | radio button |
| Radkappe | hubcap |
| Radiant | radian radiant |
| Radiator | radiator |
| Radioaktivität | radioactivity |