| marble bone disease | The formation of abnormally dense bone, as opposed to osteoporosis. (18 Nov 1997) |
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| marble bones | The formation of abnormally dense bone, as opposed to osteoporosis. (18 Nov 1997) |
| marble | 1. A massive, compact limestone; a variety of calcite, capable of being polished and used for architectural and ornamental purposes. The colour varies from white to black, being sometimes yellow, red, and green, and frequently beautifully veined or clouded. The name is also given to other rocks of like use and appearance, as serpentine or verd antique marble, and less properly to polished porphyry, granite, etc. Breccia marble consists of limestone fragments cemented together. Ruin marble, when polished, shows forms resembling ruins, due to disseminated iron oxide. Shell marble contains fossil shells. Statuary marble is a pure, white, fine-grained kind, including Parian (from Paros) and Carrara marble. If coarsely granular it is called saccharoidal. 2. A thing made of, or resembling, marble, as a work of art, or record, in marble; or, in the plural, a collection of such works; as, the Arundel or Arundelian marbles; the Elgin marbles. 3. A little ball of marble, or of some other hard substance, used as a plaything by children; or, in the plural, a child's game played with marbles. Marble is also much used in self-explaining compounds; when used figuratively in compounds it commonly means, hard, cold, destitute of compassion or feeling; as, marble-breasted, marble-faced, marble-hearted. Origin: OE. Marbel, marbre, F. Marbre, L. Marmor, fr. Gr, fr. To sparkle, flash. Cf. Marmoreal. 1. Made of, or resembling, marble; as, a marble mantel; marble paper. 2. Cold; hard; unfeeling; as, a marble breast or heart. Source: Websters Dictionary (01 Mar 1998) |
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| marble cutters' phthisis | An obsolete term for calcicosis. (05 Mar 2000) |
| bone within a bone | <radiology> STOP heavy metal, S: sickle cell disease, T: Thorotrast, O: osteopetrosis, P: Paget's disease, heavy metals, hypervitaminosis D (12 Dec 1998) |
| acute reflex bone atrophy | Atrophy of bones, commonly of the carpal or tarsal bones, following a slight injury such as a sprain. See: causalgia, reflex sympathetic dystrophy. Synonym: acute reflex bone atrophy, posttraumatic osteoporosis, Sudeck's syndrome. Origin: L. English sweat (05 Mar 2000) |
| air-bone gap | The difference between the threshold for hearing acuity by bone conduction and by air conduction. (05 Mar 2000) |
| Albrecht's bone | A small bone between the basioccipital and basisphenoid. (05 Mar 2000) |
| allogeneic bone marrow transplant | <haematology, procedure> A bone marrow transplant using marrow collected from a matched healthy donor, usually a brother or sister. The risks associated with the transplant increase with age and 50 years of age is generally regarded as the upper limit. (13 Nov 1997) |
| alveolar bone | That portion of bone in either the maxilla or the mandible which surrounds and supports the teeth. (12 Dec 1998) |
| alveolar bone loss | The resorption of bone in the supporting structures of the maxilla or mandible as a result of periodontal disease. (12 Dec 1998) |
| alveolar supporting bone | alveolar process |
| amyloidosis: bone manifestations | <radiology> Joint pain without radiographic findings, osteoporosis, especially in axial skeleton, lytic lesions that destroy cortex and invade soft tissue, wrist, scaphoid and lunate lesions that may extend into the carpal tunnel, inducing the classic complaints of carpal tunnel syndrome amyloid arthropathy Differential diagnosis: pigmented villonodular synovitis, synovial chondromatosis, rheumatoid arthritis, TB (12 Dec 1998) |
| aneurysmal bone cyst | <radiology> ABC, 10 - 30 yrs, 75% before skeletal maturity, sites: long bones; also, flat bones Findings: metaphyseal if unfused, metaepiphyseal after fusion, lytic, expansile, thin, continuous rim, thin internal bony strands (12 Dec 1998) |
| ankle bone | 1. <anatomy> The astragalus. 2. <surgery> A variety of clubfoot (Talipes calcaneus). See the Note under Talipes. 1. A slope; the inclination of the face of a work. 2. <geology> A sloping heap of fragments of rock lying at the foot of a precipice. Origin: L, the ankle, the ankle bone. (26 Nov 1998) |
| anterior condyloid canal of occipital bone | The canal through which the hypoglossal nerve emerges from the skull. Synonym: canalis hypoglossalis, anterior condyloid canal of occipital bone, anterior condyloid foramen. (05 Mar 2000) |
| anterior surface of petrous part of temporal bone | The surface of the petrous part of the temporal bone contributing to the floor of the middle cranial fossa. Synonym: facies anterior partis petrosae ossis temporalis. (05 Mar 2000) |