| Subject | English | German |
| med. | erythrocyte fragility test | Erythrozytenfragilitätsprobe |
| med. | fragility of erythrocytes | Erythrozytenresistenz |
| microel. | fragility of the ultrathin membrane | Zerbrechlichkeit der ultradünnen Membrane |
| med. | hereditary fragility of bone | Knochenbrüchigkeit (osteogenesis imperfecta tarda) |
| med. | hereditary fragility of bone | Lobsteinsche Krankheit (osteogenesis imperfecta tarda) |
| med. | hereditary fragility of bone | Osteogenesis imperfecta tarda (osteogenesis imperfecta tarda) |
| med. | hereditary fragility of bone | Osteopsathyrose (osteogenesis imperfecta tarda) |
| med. | hereditary fragility of bone | Fragilitas ossium hereditaria (osteogenesis imperfecta tarda) |