osteofibrosis

/ (ˌɒstɪəʊˌfaɪˈbrəʊsɪs) /

noun

loss of calcium from the bones, causing them to become fragile

Medical definitions for osteofibrosis

osteofibrosis
[ ŏs′tē-ō-fī-brōsĭs ]

n.

Fibrosis of bone, mainly involving bone marrow.