| PPS | Personal Preference Scale; physician, patient and society [course]; polyvalent pneumococcal polysacc... |
|---|---|
| RAS | rapid atrial stimulation; recurrent aphthous stomatitis; reflex activating stimulus; reliability, av... |
| SCS | Saethre-Chotzen syndrome; shared computer system; silicon-controlled switch; Society of Clinical Sur... |
| SIS | semantic indexing system; serotinin irritation syndrome; simian sarcoma; simulator-induced syndrome;... |
| SMAS | submuscular aponeurotic system; superficial musculo-aponeurotic system; superior mesenteric artery s... |
| central incisor | <dentistry> The first tooth in the maxilla and mandible on either side of the midsagittal plane of the head. (05 Mar 2000) |
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| central inhibition | <physiology> Suppression or diminution of outgoing impulses from a reflex centre. (05 Mar 2000) |
| central lacteal | The blindly ending lymphatic capillary in the centre of an intestinal villus. (05 Mar 2000) |
| central lateral nucleus of thalamus | The most lateral of the intralaminar nuclei of the thalamus. Synonym: nucleus centralis lateralis thalami. (05 Mar 2000) |
| central limit theorem | The sum (or average) of n realizations of the same process, provided only that it has a finite variance, will approach the gaussian distribution as n becomes indefinitely large. This theory provides a broad warrant for the use of normal theory even for nongaussian data. In the form stated here, it constitutes the classical version; more general versions allow serious relaxation of the usual assumptions. (05 Mar 2000) |
| central line | <equipment> Small, flexible plastic tube inserted into the large vein above the heart, through which drugs and blood products can be given and blood samples withdrawn painlessly. Synonym: central line, Hickman catheter. (12 Jan 1998) |
| central lobule | A division of the superior vermis of the cerebellum between the lingula and the monticulus. Synonym: lobulus centralis cerebelli, central lobule. (05 Mar 2000) |
| central lobule of cerebellum | A division of the superior vermis of the cerebellum between the lingula and the monticulus. Synonym: lobulus centralis cerebelli, central lobule. (05 Mar 2000) |
| central mesenteric lymph nodes | The mesenteric lymph nodes located along the intestinal (jejunal and ileal) branches of the superior mesenteric artery. Synonym: nodi lymphatici superiores centrales, central mesenteric lymph nodes. (05 Mar 2000) |
| central metal ion | <chemistry> The metal ion to which the ligands are attached at the centre of a coordination complex. (09 Oct 1997) |
| central necrosis | Necrosis involving the deeper or inner portions of a tissue, or an organ or its units. (05 Mar 2000) |
| central neuritis | Inflammation of the nervous substance proper, the axons, and myelin. Synonym: axial neuritis, central neuritis. (05 Mar 2000) |
| central obesity | The deposition of obesity around the trunk sparing the limbs. (27 Sep 1997) |
| central ossifying fibroma | <tumour> A painless, slow-growing, expansile, sharply circumscribed benign fibro-osseus tumour of the jaws that is derived from cells of the periodontal ligament; presents initially as a radiolucency that becomes progressively more opaque as it matures. See: central cementifying fibroma. (05 Mar 2000) |
| central osteitis | <pathology> Inflammation of bone caused by a pyogenic organism. It may remain localised or may spread through the bone to involve the marrow, cortex, cancellous tissue and periosteum. Origin: Gr. Myelos = marrow (18 Nov 1997) |