| koro | A culture-specific acute delusional syndrome occurring mostly in the malay people and southern chinese. The syndrome is characterised by the individual's sudden experience of depersonalization depicted by the belief that his penis is shrinking into his abdomen and that he will die when this occurs. Although generally classified as a culture-specific syndrome, koro may be no more than a variant of castration anxiety (anxiety, castration) as it has been described in non-asian patients. (12 Dec 1998) |
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| koronion | The tip of the coronoid process of the mandible; a craniometric point. Synonym: koronion. Origin: G. Korone, crow (05 Mar 2000) |
| Korotkoff sounds | Sound's heard over an artery when pressure over it is reduced below systolic arterial pressure, as when blood pressure is determined by the auscultatory method. (05 Mar 2000) |
| Korotkoff's test | A test of collateral circulation; while the artery above an aneurysm is compressed, the blood pressure in the distal circulation is estimated; if it is fairly high, the collateral circulation is good. (05 Mar 2000) |
| Korotkoff, Nikolai | <person> Russian physician, 1874-1920. See: Korotkoff sounds, Korotkoff's test. (05 Mar 2000) |
| korrigum | <zoology> A West African antelope (Damalis Senegalensis), allied to the sassaby. It is reddish gray, with a black face, and a black stripe on the outside of the legs above the knees. Origin: Native name. Source: Websters Dictionary (01 Mar 1998) |
| Korsakoff's psychosis | <syndrome> May occur as a sequel to chronic alcohol abuse. Features include personality changes, confabulation, psychosis, disorientation, polyneuritis, insomnia and hallucinations. (27 Sep 1997) |
| Korsakoff's syndrome | <syndrome> May occur as a sequel to chronic alcohol abuse. Features include personality changes, confabulation, psychosis, disorientation, polyneuritis, insomnia and hallucinations. (27 Sep 1997) |
| Korsakoff, Sergei | <person> Russian neurologist, 1853-1900. See: Korsakoff's psychosis, Korsakoff's syndrome, Wernicke-Korsakoff encephalopathy, Wernicke-Korsakoff syndrome. (05 Mar 2000) |
| Koshland, Daniel | <person> U.S. Biochemist, *1920. See: Adair-Koshland-Nemethy-Filmer model, Koshland-Nemethy-Filmer model. (05 Mar 2000) |
| Koshland-Nemethy-Filmer model | <biochemistry, chemistry> A model to explain the allosteric form of cooperativity; in this model, in the absence of ligands, the protein exists in only one conformation; upon binding, the ligand induces a conformational change that may be transmitted to other subunits. Synonym: Adair-Koshland-Nemethy-Filmer model, induced fit model. (05 Mar 2000) |
| Kossa stain | <technique> A stain for calcium in mineralised tissue, utilizing a silver nitrate solution followed by sodium thiosulfate; calcified bone but not osteoid is stained brown to black. Synonym: Kossa stain. (05 Mar 2000) |
| Kostmann syndrome | <syndrome> Severe infantile agranulocytosis, an inherited disorder of infancy characterised by severe, recurrent infections, and neutropenia. (05 Mar 2000) |
| koulan | <zoology> A wild horse (Equus, or Asinus, onager) inhabiting the plants of Central Asia. Synonym: gour, khur, and onager. Alternative forms: kulan. It is sometimes confounded with the dziggetai, to which it is closely related. It is gray in winter, but fulvous in summer. It has a well defined, dark, dorsal stripe, and a short, erect mane. In size, it is intermediate between the horse and ass. Origin: Native name. Source: Websters Dictionary (01 Mar 1998) |
| kousso | <botany> An Abyssinian rosaceous tree (Brayera anthelmintica), the flowers of which are used as a vermifuge. Alternative forms: cusso and kosso. Source: Websters Dictionary (01 Mar 1998) |