| ossific centre | The site of earliest bone formation via accumulation of osteoblasts within connective tissue (membranous ossification) or of earliest destruction of cartilage prior to onset of ossification (endochondral ossification). Synonym: punctum ossificationis, ossific centre, point of ossification. (05 Mar 2000) |
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| ossification | <orthopaedics> Pathology> The formation of bone or of a bony substance, the conversion of fibrous tissue or of cartilage into bone or a bony substance. Origin: L. Ossificatio (18 Nov 1997) |
| ossification of posterior longitudinal ligament | Ossification or calcification of the posterior longitudinal ligament of the spinal column. The main symptoms arise from myelopathy of various degrees of severity, usually spinal cord compression caused by stenosis of the spinal canal. It is very common in the japanese but relatively less common in caucasians. It is frequently, but not exclusively, located at the level of the cervical spine. It is often associated with anterior ankylosing hyperostosis. (12 Dec 1998) |
| ossification, heterotopic | The development of bony substance in normally soft structures. (12 Dec 1998) |
| ossified | Changed to bone or something resembling bone; hardened by deposits of mineral matter of any kind; said of tissues. Source: Websters Dictionary (01 Mar 1998) |
| ossiform | Synonym: osteoid. Origin: ossi-+ L. Forma, form (05 Mar 2000) |
| ossifrage | <zoology> The lammergeir. The young of the sea eagle or bald eagle. Origin: L. Ossifraga, ossifragus, osprey, fr. Ossifragus bone breaking; os, ossis, a bone + frangere, fractum, to break. See Osseous, Break, and cf. Osprey, Ossifragous. Source: Websters Dictionary (01 Mar 1998) |
| ossifragous | Serving to break bones; bone-breaking. Origin: L. Ossifragus. See Ossifrage. (01 Mar 1998) |
| ossify | 1. <physiology> To form into bone; to change from a soft animal substance into bone, as by the deposition of lime salts. 2. To harden; as, to ossify the heart. Origin: L. Os, ossis, bone + -fy: cf. F. Ossifier. See Osseous. <physiology> To become bone; to change from a soft tissue to a hard bony tissue. Source: Websters Dictionary (01 Mar 1998) |
| ossifying | <physiology> Changing into bone; becoming bone; as, the ossifying process. Source: Websters Dictionary (01 Mar 1998) |
| ossifying cartilage | A cartilage that is normally replaced by bone, to form a part of the skeleton. Synonym: ossifying cartilage, precursory cartilage. (05 Mar 2000) |
| ossis | Synonym: bone. For histological description, see bone. Origin: L. Bone (05 Mar 2000) |
| ossivorous | Feeding on bones; eating bones; as, ossivorous quadrupeds. Origin: L. Os, ossis, bone + vorare to devour: cf. F. Ossivore. Source: Websters Dictionary (01 Mar 1998) |
| ossuary | Origin: L. Ossuarium, fr. Ossuarius of or bones, fr. Os, ossis, bone: cf. F. Ossuaire. A place where the bones of the dead are deposited; a charnel house. Source: Websters Dictionary (01 Mar 1998) |
| ost- | See: osteo-. (05 Mar 2000) |
| osteon |
(os
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| osteonecrosis |
(os·teo·ne·cro·sis) (os²te-on[schwa]-kro¢sis) [osteo- + necrosis] necrosis of bone due to obstruction of its blood supply. Called also avascular or ischemic necrosis of bone.
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| osteonectin |
(os
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| osteoneuralgia |
(os
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| osteopath |
(os
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| os | medium-sized hop hornbeam of eastern North America |
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| os | deciduous monoecious shrubs of China and Mongolia resembling trees of the genus Ostrya |
| os | German chemist (1853-1932) |
| os | (chemistry) the theory that all indicators are either weak acids or weak bases in which the color of the ionized form is different from the color before dissociation |
| os | a Ugric language (related to Hungarian) spoken by the Ostyak people |
| os | a member of the nomadic Ugrian people living in northwestern Siberia (east of the Ural mountains) |
| os | the Uralic language spoken by the Ostyak-Samoyed people |
| os | one of the people of mixed Ostyak and Samoyed origin in Siberia |
| os | United States assassin of President John F. Kennedy (1939-1963) |
| os | German philosopher who argued that cultures grow and decay in cycles (1880-1936) |
| os | United States mathematician (1880-1960) |
| os | perennial aromatic herb of eastern North America having variously colored tubular flowers in dense showy heads |