| seam | Origin: OE. Seem, seam, AS. Seam; akin to D. Zoom, OHG. Soum, G. Saum, LG. Soom, Icel. Saumr, Sw. & Dan. Som, and E. Sew. See Sew to fasten with thread. 1. The fold or line formed by sewing together two pieces of cloth or leather. 2. Hence, a line of junction; a joint; a suture, as on a ship, a floor, or other structure; the line of union, or joint, of two boards, planks, metal plates, etc. "Precepts should be so finely wrought together . . . That no coarse seam may discover where they join." (Addison) 3. <geology> A thin layer or stratum; a narrow vein between two thicker strata; as, a seam of coal. 4. A line or depression left by a cut or wound; a scar; a cicatrix. Seam blast, a blast by putting the powder into seams or cracks of rocks. Seam lace, a lace used by carriage makers to cover seams and edges. Synonym: seaming lace. Seam presser. <agriculture> A heavy roller to press down newly plowed furrows. A tailor's sadiron for pressing seams. Seam set, a set for flattering the seams of metal sheets, leather work, etc. Source: Websters Dictionary (01 Mar 1998) |
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| giant osteoid osteoma | A benign, painful, tumour of bone characterised by the formation of osteoid tissue, primitive bone and calcified tissue. It occurs frequently in the spine of young persons. (12 Dec 1998) |
| osteoid | <pathology> Uncalcified bone matrix, the product of osteoblasts. Consists mainly of collagen, but has osteonectin present. (18 Nov 1997) |
| osteoid osteoma | <radiology> M more than F, 15 - 30 years of age, lucent nidus with thickened cortex, metaphyseal, femur, talus, tibia, patella, rarely spine, never skull or clavicle, pain at night, relievey be inflammatory rather than neoplastic, treatment: leave it (disappears in 4-6 yrs), or remove nidus, Differential diagnosis: TB abscess, chronic osteo (Brodie abscess), sclerosing osteomyelitis of Garre (12 Dec 1998) |
| osteoid tissue | Osseous tissue prior to calcification. (05 Mar 2000) |
| osteoma, osteoid | Benign circumscribed tumour of spongy bone occurring especially in the bones of the extremities and vertebrae, most often in young persons. (12 Dec 1998) |