Medical Definition of ossification
1a: the process of bone formation usually beginning at particular centers in each prospective bone and involving the activities of special osteoblasts that segregate and deposit inorganic bone substance about themselves—compare calcification ab: an instance of this process
2a: the condition of being altered into a hard bony substance <ossification of soft tissue>b: a mass or particle of ossified tissue : a calcareous deposit in the tissues <ossifications in the aortic wall>
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