| bone | 1. <anatomy> The hard, calcified tissue of the skeleton of vertebrate animals, consisting very largely of calcic carbonate, calcic phosphate, and gelatine; as, blood and bone. Even in the hardest parts of bone there are many minute cavities containing living matter and connected by minute canals, some of which connect with larger canals through which blood vessels ramify. 2. One of the pieces or parts of an animal skeleton; as, a rib or a thigh bone; a bone of the arm or leg; also, any fragment of bony substance. (pl) The frame or skeleton of the body. 3. Anything made of bone, as a bobbin for weaving bone lace. 4. Two or four pieces of bone held between the fingers and struck together to make a kind of music. 5. Dice. 6. Whalebone; hence, a piece of whalebone or of steel for a corset. 7. The framework of anything. A bone of contention, a subject of contention or dispute. A bone to pick, something to investigate, or to busy one's self about; a dispute to be settled (with some one). Bone ash, the residue from calcined bones; used for making cupels, and for cleaning jewelry. <mathematics> Bone black, a right whale. To be upon the bones of, to attack. To pick a bone with, to quarrel with, as dogs quarrel over a bone; to settle a disagreement. Origin: OE. Bon, ban, AS. Ban; akin to Icel. Bein, Sw. Ben, Dan. & D. Been, G. Bein bone, leg; cf. Icel. Beinn straight. Source: Websters Dictionary (01 Mar 1998) |
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| bone abscess | Suppuration within the medullary cavity (osteomyelitis), cortex, or periosteum of bone. (05 Mar 2000) |
| bone ache | A dull pain in the bones, often severe; an extreme variety occurs in dengue. (05 Mar 2000) |
| bone age | The stage of development of bone as adjudged by radiography, in contrast to chronologic age. (05 Mar 2000) |
| bone architecture | The pattern of trabeculae and associated structures. See: Wolff's law. (05 Mar 2000) |
| bone ash | Ca3(PO4)2;used as an antacid. Synonym: bone ash, bone phosphate, tertiary calcium phosphate, tricalcium phosphate, whitlockite. (05 Mar 2000) |
| bone banks | Centres for acquiring, characterizing, and storing bones or bone tissue for future use. (12 Dec 1998) |
| bone black | Charcoal produced by incomplete combustion of animal tissues, especially bone. Synonym: animal black, bone black, bone charcoal. (05 Mar 2000) |
| bone block | A surgical procedure in which the bone adjacent to the joint is modified to limit the motion of the joint mechanically; e.g., at the ankle joint to correct foot-drop by preventing extension below 90 |
| bone canaliculus | The canaliculus interconnecting bone lacunae with one another or with a haversian canal; contains the interconnecting cytoplasmic processes of osteocytes. (05 Mar 2000) |
| bone cancer | <oncology> A general term to imply malignant tumour growth in bone. (27 Sep 1997) |
| bone cell | <pathology> Osteoblast that is embedded in bony tissue and which is relatively inactive. (18 Nov 1997) |
| bone cements | Adhesives used to fix prosthetic devices to bones and to cement bone to bone in difficult fractures. Synthetic resins are commonly used as cements. A mixture of monocalcium phosphate, monohydrate, alpha-tricalcium phosphate, and calcium carbonate with a sodium phosphate solution is also a useful bone paste. (12 Dec 1998) |
| bone charcoal | Charcoal produced by incomplete combustion of animal tissues, especially bone. Synonym: animal black, bone black, bone charcoal. (05 Mar 2000) |
| bone conduction | The conduction of sound to the inner ear through the bones of the skull. (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) |
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| 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) |
| apex of petrous part of temporal bone | The irregular antero-medial extremity of the petrous part on which the anterior end of the carotid canal opens. Synonym: apex partis petrosae ossis temporalis. (05 Mar 2000) |
| articular eminence of temporal bone | Articular eminence of the temporal bone which bounds the mandibular fossa anteriorly; it forms the anterior root of the zygomatic process; it is enclosed by the articular capsule of the temporomandibular joint with the articular fossa; the head of the mandible (and intervening articular disc) move onto the articular tubercle to allow full depression of mandible (opening of mouth). Synonym: tuberculum articulare ossis temporalis, articular eminence of temporal bone, eminentia articularis ossis temporalis, tuber zygomaticum. (05 Mar 2000) |
| articular fossa of temporal bone | A deep hollow in the squamous portion of the temporal bone at the root of the zygoma, in which rests the condyle of the mandible. Synonym: cavitas glenoidalis, fossa mandibularis, articular fossa of temporal bone, glenoid cavity, glenoid fossa, glenoid surface. (05 Mar 2000) |