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The death of bone in mass, as distinguished from caries (“molecular death”) or relatively small foci of necrosis in bone. [osteo- + G. nekrosis, death]
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os·teo·ne·cro·sis (os″te-o-nə-kroґsis) [osteo- + necrosis] necrosis of bone due to obstruction of its blood supply. Called also avascular or ischemic necrosis of bone.Medical dictionary. 2011.