Definition of osteosclerosis in US English:

osteosclerosis

noun

Medicine
  • Abnormal hardening or thickening of bone; increased radiodensity of bone.

Origin

Mid 19th century. From German Osteosclerosis (now Osteosklerose) from French ostéosclérose from ostéo- + sclérose.

Pronunciation

osteosclerosis

/ˌɒstɪəʊsklɪˈrəʊsɪs/