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[os-tee-oh-pi-troh-sis] /ˌɒs ti oʊ pɪˈtroʊ sɪs/
noun, Pathology.
any of several hereditary diseases characterized by increased bone density.
Origin of osteopetrosis
1925-30; osteo- + Greek petrō-, variant stem of petroûn to turn to stone (derivative of pétra stone) + -sis -sis; see -osis Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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osteopetrosis in Medicine

osteopetrosis os·te·o·pe·tro·sis (ŏs'tē-ō-pě-trō'sĭs)
An inherited disorder in which bone and cartilage, especially in long bones, becomes dense and hardened to an extent that marrow is obliterated, and anemia, spleen and liver enlargement, blindness, and progressive deafness occur; it begins in infancy and sometimes results in early death. Also called Albers-Schönberg disease, marble bone disease, marble bones.

os'te·o·pe·trot'ic (-trŏt'ĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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