| extended pyelotomy | Extension of a standard pyelotomy into the lower pole infundibulum through the avascular plane between the posterior and basilar segmental renal arteries. Synonym: Gil-Vernet operation. (05 Mar 2000) |
|---|---|
| extended radical mastectomy | Excision of the entire breast including the nipple, areola, and overlying skin, as well as the pectoral muscles and the lymphatic-bearing tissues of the axilla and chest wall and internal mammary chain of lymph nodes. (05 Mar 2000) |
| butter of zinc | ZnCl2;formerly used as a caustic for the removal of cutaneous cancers, nevi, etc., and in weak solution in the treatment of gonorrhoea and conjunctivitis. Synonym: butter of zinc. (05 Mar 2000) |
| medicinal zinc peroxide | A mixture of zinc peroxide, zinc carbonate, and zinc hydroxide; a topical disinfectant, astringent, and deodorant. (05 Mar 2000) |
| modified zinc oxide-eugenol cement | Dental cement obtained by mixing zinc oxide and eugenol with one or more additives. (05 Mar 2000) |
| deficiency dermatitis and diarrhoea, zinc | A genetic disease called acrodermatitis enteropathica is characterised by the simultaneous occurrence of skin inflammation (dermatitis) and diarrhoea. The skin on the cheeks, elbows and knees and tissue about the mouth and anus are inflammed. There is also balding of the scalp, eyebrows and lashes, delayed wound healing and recurrent bacterial and fungal infections due to immune deficiency. The key laboratory finding is an abnormally low blood zinc level reflecting impaired zinc uptake. Oral treatment with zinc is curative. (12 Dec 1998) |
| deficiency, zinc | Deficiency of zinc is associated with short stature, anaemia, increased pigmentation of skin (hyperpigmentation), enlarged liver and spleen (hepatosplenomegaly), impaired gonadal function (hypogonadism), impaired wound healing, and immune deficiency. (For a genetic disorder that impairs zinc uptake, please see Acrodermatitis enteropathica). According to the National Academy of Sciences, the Recommended Dietary Allowances of zinc are 12 milligrams per day for women and 10 milligrams per day for men. Food sources of zinc include meat including liver, eggs, seafood, nuts and cereal. (12 Dec 1998) |
| zinc | <chemistry, element> An essential trace element being an essential component of the active site of a variety of enzymes. Zinc has a high affinity for the side chains of cysteine and histidine. Zinc is present in tissues at levels of 0.1mM, but intracellular levels must be much lower. Abbreviation: Zn (18 Nov 1997) |
| zinc-65 | A radioactive zinc isotope that decays mainly by K-capture with a half-life of 243.8 days; used as a tracer in studies of zinc metabolism. (05 Mar 2000) |
| zinc acetate | <chemical> A salt produced by the reaction of zinc oxide with acetic acid. It is used as a pharmaceutic necessity for zinc-eugenol cement and also as an astringent, styptic, and formerly as an emetic. Pharmacological action: astringents, pharmaceutic aid. (12 Dec 1998) |
| zinc arsenate | <chemical> A toxic compound of zinc and arsenic which is used as an insecticide and to preserve timber from decay. (11 May 1997) |
| zinc caprylate | A topical antifungal compound. (05 Mar 2000) |
| zinc chloride | ZnCl2;formerly used as a caustic for the removal of cutaneous cancers, nevi, etc., and in weak solution in the treatment of gonorrhoea and conjunctivitis. Synonym: butter of zinc. (05 Mar 2000) |
| zinc colic | Colic resulting from chronic zinc poisoning. (05 Mar 2000) |
| zinc compounds | Inorganic compounds that contain zinc as an integral part of the molecule. (12 Dec 1998) |