| computer security | Protective measures against unauthorised access to or interference with computer operating systems, telecommunications, or data structures, especially the modification, deletion, destruction, or release of data in computers. It includes methods of forestalling interference by computer viruses or so-called computer hackers aiming to compromise stored data. (12 Dec 1998) |
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| security measures | Regulations to assure protection of property and equipment. (12 Dec 1998) |
| social security | Government sponsored social insurance programs. (12 Dec 1998) |
| employee retirement income security act | A 1974 federal act which preempts states' rights with regard to workers' pension benefits and employee benefits. It does not affect the benefits and rights of employees whose employer is self-insured. (12 Dec 1998) |
| united states social security administration | The social security administration administers a national program of contributory social insurance whereby employees, employers, and the self-employed pay contributions that are pooled in special trust funds. When earnings are reduced because of retirement, death, or disability, monthly benefits are paid to partially replace lost earnings. Part of the contributions go into a separate hospital insurance trust fund for workers when they become 65 to provide help with medical expenses. Other programs include the supplemental social security income program for the aged, blind, and disabled and the old age survivors and disability insurance program. Ssa became an independent agency march 31, 1995. It had previously been part of the department of health, education, and welfare, later the department of health and human services. (12 Dec 1998) |
| Abbe operation | Use of an Abbe flap in plastic surgery of the lips. (05 Mar 2000) |
| Arie-Pitanguy operation | A procedure to reduce a large breast by a lozenge-shaped resection of tissue from its inferior pole. Synonym: Arie-Pitanguy mammaplasty. (05 Mar 2000) |
| Arlt's operation | Transplantation of the eyelashes back from the edge of the lid in trichiasis. (05 Mar 2000) |
| arterial switch operation | Operation for complete transposition of the great arteries; the most common way to repair this defect consists of switching the aorta and pulmonary arteries and implanting the coronary arteries into the neoaorta (the original pulmonary artery). (05 Mar 2000) |
| Baldy's operation | An obsolete operation for retrodisplacement of the uterus, consisting of bringing the round ligaments through the perforated broad ligaments and attaching them to each other and to the back of the uterus. Synonym: Webster's operation. (05 Mar 2000) |
| Ball's operation | Division of the sensory nerve trunks supplying the anus, for relief of pruritus ani. (05 Mar 2000) |
| Barkan's operation | Goniotomy for congenital glaucoma under direct observation of the anterior chamber angle. (05 Mar 2000) |
| Bassini's operation | An operation for an inguinal hernia repair; after reduction of the hernia, the sac is twisted, ligated, and cut off, then a new inguinal canal is made by uniting the edge of the internal oblique muscle to the inguinal ligament, placing on this the cord, and covering the latter by the external oblique muscle. (05 Mar 2000) |
| Baudelocque's operation | An incision through the posterior cul-de-sac of the vagina for the removal of the ovum, in extrauterine pregnancy. (05 Mar 2000) |
| Belsey Mark IV operation | A transthoracic anti-reflux procedure; it restores a 3 to 4 cm length of intraabdominal oesophagus, maintains a narrow diameter of the distal oesophagus by a gastric fundoplication. (05 Mar 2000) |