osteodesmosis

os·te·o·des·mo·sis

(os'tē-ō-dez-mō'sis),
Transformation of tendon into bony tissue.
[osteo- + G. desmos, a band (tendon), + -osis, condition]

osteodesmosis

(ōs″tē-ō-dĕs-mō′sĭs) [″ + desmos, tendon, + osis, condition]
The transformation of tendon into bone.