| SI | International System of Units [Fr. le Systeme International d'Unites]; sacroiliac; saline infusion; ... |
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| SRS | schizophrenic residual state; sex reassignment surgery; Silver-Russell syndrome; simple repeat seque... |
| SS | disulfide; sacrosciatic; saline soak; saline solution; saliva sample; saliva substitute; Salmonella-... |
| CST | Contraction Stress Test |
| LBWI | Low Birth Weight Infant; 저출생체중아(低出生體重兒) 원인 1. 모체;Mother &nbs... |
| stress echocardiogram | <investigation> An echocardiogram that is performed after a period of physical exertion. Chemical stimulation of the heart (to mimic exertion) is used in some cases where physical activity is not possible. In some cases, exertion may manifest a cardiac abnormality not obvious during echocardiography in the resting heart. (27 Sep 1997) |
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| stress echocardiography | Echocardiographic monitoring of a circulatory challenge, usually exercise. Transesophageal echocardiography, recording of the echocardiogram from a transducer swallowed by the patient to predetermined distances in the oesophagus and stomach. Transthoracic echocardiography, the standard echocardiography recorded from echocardiographic "windows" on the precordium. Two-dimensional echocardiography, echocardiography in which an image is reconstructed from the echoes stimulated and detected by a linear array or moving transducers. Synonym: B-mode echocardiography, cross-sectional echocardiography. (05 Mar 2000) |
| stress fibre | <physiology> Long bundles of microfilaments made up of actin subunits. They are involved in the attachment of cultured cells to a substratum, the determination of cell shape and may be involved in cellular mobility. They are found in most cells and have been shown to be contractile, have a periodicity reminiscent of the sarcomere and are anchored at one end to a focal adhesion, although sometimes between two focal adhesions. (17 Jul 2002) |
| stress fracture | <orthopaedics, radiology> A hairline or microscopic break in the bone that is not demonstrable with conventional X-rays. Symptoms include a dull aching pain with tenderness at the site. Symptoms often increase with activity and diminish with rest. Nuclear bone scanning will reliably demonstrate stress fractures where conventional radiographs often fail. Although they may occur in most any location, they are most common in the tibia, fibula and metatarsal bones. (27 Sep 1997) |
| stress immunity | Insusceptibility or resistance to the effects of emotional strain. (05 Mar 2000) |
| stress induced protein | <molecular biology> Alternative and preferable name for heat-shock proteins of eukaryotic cells, which emphasises that the same small group of proteins is stimulated both by heat and various other stresses. (18 Nov 1997) |
| stress, mechanical | A purely physical condition which exists within any material because of strain or deformation by external forces or by non-uniform thermal expansion; expressed quantitatively in units of force per unit area. (12 Dec 1998) |
| stress, psychological | Stress wherein emotional factors predominate. (12 Dec 1998) |
| stress reaction | An acute emotional reaction related to extreme environmental stress. Synonym: acute situational reaction. (05 Mar 2000) |
| stress riser | A mechanical defect, such as a hole, in bone or other materials that concentrates stress in the area. (05 Mar 2000) |
| stress shielding | Osteopenia occurring in bone as the result of removal of normal stress from the bone by an implant. (05 Mar 2000) |
| stress-strain curve | A curve showing the ratio of deformation to load during the testing of a material in tension. (05 Mar 2000) |
| stress test | Any cardiac challenge, physical, pharmacologic, or mental delivered under monitored conditions. Most commonly this is exercise, the most common monitor being electrocardiography although any other graphic technique, including cardiac catheterization, may be applied. (05 Mar 2000) |
| stress ulcers | An ulcer of the duodenum in a patient with extensive superficial burns, intracranial lesions, or severe bodily injury. Synonym: stress ulcers. (05 Mar 2000) |
| stress urinary incontinence | Leakage of urine as a result of coughing, straining, or some sudden voluntary movement, due to weakness of the fascia muscles and at the neck of the bladder. Synonym: urinary exertional incontinence. (05 Mar 2000) |