| Noun | 1. | ossification - the developmental process of bone formationbiological process, organic process - a process occurring in living organisms |
| 2. | ossification - the calcification of soft tissue into a bonelike material calcification - a process that impregnates something with calcium (or calcium salts) | |
| 3. | ossification - the process of becoming rigidly fixed in a conventional pattern of thought or behavior human process - a process in which human beings are involved | |
| 4. | ossification - hardened conventionality |