| Gigli's saw | A hand-held wire saw for use in craniotomy or pubiotomy. (05 Mar 2000) |
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| saw | An instrument for cutting or dividing substances, as wood, iron, etc, consisting of a thin blade, or plate, of steel, with a series of sharp teeth on the edge, which remove successive portions of the material by cutting and tearing. Saw is frequently used adjectively, or as the first part of a compound. Band saw, Crosscut saw, etc. See Band, Crosscut, etc. Circular saw, a disk of steel with saw teeth upon its periphery, and revolved on an arbor. Saw bench, a bench or table with a flat top for for sawing, especially with a circular saw which projects above the table. Saw file, a three-cornered file, such as is used for sharpening saw teeth. Saw frame, the frame or sash in a sawmill, in which the saw, or gang of saws, is held. Saw gate, a saw frame. Saw gin, the form of cotton gin invented by Eli Whitney, in which the cotton fibres are drawn, by the teeth, of a set of revolving circular saws, through a wire grating which is too fine for the seeds to pass. <botany> Saw grass, the marsh titmouse (Parus palustris); so named from its call note. Scroll saw, a ribbon of steel with saw teeth upon one edge, stretched in a frame and adapted for sawing curved outlines; also, a machine in which such a saw is worked by foot or power. Origin: OE. Sawe, AS. Sage; akin to D. Zaag, G. Sage, OHG. Sega, saga, Dan. Sav, sw. Sag, Icel. Sog, L. Secare to cut, securis ax, secula sickle. Cf. Scythe, Sickle, Section, Sedge. Source: Websters Dictionary (01 Mar 1998) |
| saw-whet | <zoology> A small North American owl (Nyctale Acadica), destitute of ear tufts and having feathered toes. Synonym: Acadian owl. Source: Websters Dictionary (01 Mar 1998) |
| saw-wort | <botany> Any plant of the composite genus Serratula; so named from the serrated leaves of most of the species. Source: Websters Dictionary (01 Mar 1998) |
| Stryker saw | A rapidly oscillating saw used for cutting bone or plaster casts; it cuts hard matter, but soft tissues give and thus are not injured. (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) |