| polycystic kidney | A progressive disease characterised by formation of multiple cysts of varying size scattered diffusely throughout both kidney's, resulting in compression and destruction of kidney parenchyma, usually with hypertension, gross haematuria, and uraemia; there are two major types: 1) with onset in infancy or early childhood, usually with autosomal recessive inheritance; 2) with onset in adulthood, with autosomal dominant inheritance. Synonym: polycystic disease of kidneys. (05 Mar 2000) |
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| polycystic kidney disease | <disease> A rare inherited condition in which the kidney are composed of multiple cysts. Kidney cysts are associated with an increased incidence of cerebral aneurysm. Symptoms usually appear later (if they do at all) and include blood in the urine, flank pain, excessive urination at night and abdominal pain. Individuals may also have elevated blood pressure. Chronic (end-stage renal disease) renal failure is the most common result in the 5th to 6th decades of life. Incidence: 1 in 5,000. (02 Jan 1998) |
| polycystic liver | Gradual cystic dilation of intralobular bile ducts (Meyenburg's complexes) that fail to involute in embryologic development of the liver; frequently associated with bilateral congenital polycystic kidneys and occasionally with cystic involvement of the pancreas, lungs, and other organs. Synonym: polycystic liver disease. (05 Mar 2000) |
| polycystic liver disease | Gradual cystic dilation of intralobular bile ducts (Meyenburg's complexes) that fail to involute in embryologic development of the liver; frequently associated with bilateral congenital polycystic kidneys and occasionally with cystic involvement of the pancreas, lungs, and other organs. Synonym: polycystic liver disease. (05 Mar 2000) |
| polycystic ovarian disease | <disease> A condition found among women who do not ovulate, characterised by multiple ovarian cysts and increased androgen production. (09 Oct 1997) |
| polycystic ovary | Enlarged cystic ovary's, pearl white in colour, with thickened tunica albuginea, characteristic of the Stein-Leventhal syndrome; clinical features are abnormal menses, obesity, and evidence of masculinization, such as hirsutism. (05 Mar 2000) |
| polycystic ovary syndrome | <syndrome> Clinical symptom complex characterised by oligomenorrhoea or amenorrhoea, anovulation, and regularly associated with bilateral polycystic ovaries. (12 Dec 1998) |
| polycystid | <zoology> One of the Polycystidea. One of the Polycystina. Pertaining to the Polycystidea, or the Polycystina. Source: Websters Dictionary (01 Mar 1998) |
| polycystidea | <zoology> A division of Gregarinae including those that have two or more internal divisions of the body. Origin: NL. See Poly-, and Cystidea. Source: Websters Dictionary (01 Mar 1998) |
| polycystina | <zoology> A division of Radiolaria including numerous minute marine species. The skeleton is composed of silica, and is often very elegant in form and sculpture. Many have been found in the fossil state. Origin: NL. See Poly-, and Cyst. Source: Websters Dictionary (01 Mar 1998) |
| polycystine | <zoology> Pertaining to the Polycystina. One of the Polycystina. Source: Websters Dictionary (01 Mar 1998) |
| polycythaemia | <haematology> Increase in the haemoglobin content of the blood, either because of a reduction in plasma volume or an increase in red cell numbers. The latter may be a result of abnormal proliferation of red cell precursors (polycythaemia vera, Vaquez Osler disease). Origin: Gr. Haima = blood (18 Nov 1997) |
| polycythaemia rubra vera | <haematology> A condition characterised by enlargement of the spleen and the increased production of red blood cells by the bone marrow. Diagnosis is based on an increased number and volume of red cells. The total number of white blood cells and platelets may also be increased. Treatment will vary according to the age of the patient and severity of the disease. This condition carries an increased risk of developing acute leukaemia. The disease usually begins in late middle life and is slightly more common in males. (11 Nov 1997) |
| polycythaemia vera | <haematology> A condition characterised by enlargement of the spleen and the increased production of red blood cells by the bone marrow. Diagnosis is based on an increased number and volume of red cells. The total number of white blood cells and platelets may also be increased. Treatment will vary according to the age of the patient and severity of the disease. This condition carries an increased risk of developing acute leukaemia. The disease usually begins in late middle life and is slightly more common in males. (11 Nov 1997) |
| polycythemia | The opposite of anaemia. Too many red blood cells. Polycythemia formally exists when the haemoglobin, red blood cell count, and total rbc volume are all above normal. (12 Dec 1998) |
| polychlorinated biphenyl |
A family of highly toxic chemical compounds known to cause skin diseases and suspected of causing birth defects and cancer.
출처: www.deh.gov.au/settlements/industry/finance/glossa...
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| polyclonal |
Pertaining to multiple clones.
출처: dictionary.rare-cancer.org/dictionary.php
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| polychlorinated biphenyls |
Toxic human-made compounds developed in 1929 and manufactured until 1977. They were used in a variety of products, such as transformers and fluorescent light ballasts. They are chemically inert and not biodegradable, and therefore banned in 1979. However, since products already in use didn't have to be replaced, they are still being introduced into our environment. Found in surface and groundwater, they are drawn to sediment, where they can remain indefinitely. ...
출처: www.ecohealth101.org/glossary.html
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| polychlorinated biphenyls |
A group of toxic, carcinogenic organic compounds containing more than one chlorine atom. PCB's were used in the manufacture of plastics and as insulating fluids in electrical transformers and capacitors. They behave much like DDT in the environment in that they are very stable compounds and are also fat-soluble; therefore, they accumulate in ever-higher concentrations as they move up the food chain. The use of PCB's was banned in the United States in 1979.
출처: biology.usgs.gov/s+t/SNT/noframe/zy198.htm
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| polycythemia vera |
a blood disorder where there is an increase in all blood cells, particularly red blood cells.
출처: www.health.uab.edu/show.asp
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