| LFD | lactose-free diet; large for date [fetus]; late fetal death; lateral facial dysplasia; least fatal d... |
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| LFT | latex fixation test; latex flocculation test; left fronto-transverse [fetal position]; liver functio... |
| LAP | laparoscopy; laparotomy; left arterial pressure; left atrial pressure; leucine aminopeptidase; leuke... |
| DME | degenerative myoclonus epilepsy; dimethyl diester; dimethyl ether; diphasic meningoencephalitis; dir... |
| Hg | mercury [Lat. hydrargyrum] |
pressure necrosis
| ammoniated mercury | Used in ointment for the treatment of skin diseases. Synonym: ammoniated mercuric chloride, white mercuric precipitate. (05 Mar 2000) |
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| mercury | 1. <astronomy> The first planet in order from the sun. It has no known natural satellites. It is one of the four inner or terrestrial planets of the solar system. It is the planet nearest the sun, from which its mean distance is about 36,000,000 miles. Its period is 88 days, and its diameter 3,000 miles. 2. <chemistry> A metallic element mostly obtained by reduction from cinnabar, one of its ores. It is a heavy, opaque, glistening liquid (commonly called quicksilver), and is used in barometers, thermometers, ect. Specific gravity 13.6. Symbol Hg (Hydrargyrum). Atomic weight 199.8. Mercury has a molecule which consists of only one atom. It was named by the alchemists after the god Mercury, and designated by his symbol, <mercury/. Mercury forms alloys, called amalgams, with many metals, and is thus used in applying tin foil to the backs of mirrors, and in extracting gold and silver from their ores. It is poisonous, and is used in medicine in the free state as in blue pill, and in its compounds as calomel, corrosive sublimate, etc. It is the only metal which is liquid at ordinary temperatures, and it solidifies at about -39 deg Centigrade to a soft, malleable, ductile metal. 3. Sprightly or mercurial quality; spirit; mutability; fickleness. "He was so full of mercury that he could not fix long in any friendship, or to any design." (Bp. Burnet) 6. <botany> A plant (Mercurialis annua), of the Spurge family, the leaves of which are sometimes used for spinach, in Europe. The name is also applied, in the United States, to certain climbing plants, some of which are poisonous to the skin, especially. To the Rhus Toxicodendron, or poison ivy. Origin: L. Mercurius; akin to merx wares. Source: Websters Dictionary (25 Jun 1999) |
| mercury bichloride | <chemical> Mercury chloride (hgcl2). A highly toxic compound that volatises slightly at ordinary temperature and appreciably at 100 degrees c. It is corrosive to mucous membranes and used as a topical antiseptic and disinfectant. Pharmacological action: anti-infective agents, local, disinfectants. Chemical name: Mercury chloride (HgCl2) (12 Dec 1998) |
| mercury biniodide | mercuric iodide, red |
| mercury compounds | Inorganic compounds that contain mercury as an integral part of the molecule. (12 Dec 1998) |
| mercury deutoiodide | mercuric iodide, red |
| mercury isotopes | Stable mercury atoms that have the same atomic number as the element mercury, but differ in atomic weight. Hg-196, 198-201, and 204 are stable mercury isotopes. (12 Dec 1998) |
| mercury poisoning | A disease usually caused by the ingestion of mercury or mercury compounds, which are toxic in relation to their ability to produce mercuric ions; usually acute mercury poisoning is associated with ulcerations of the stomach and intestine and toxic changes in the renal tubules; anuria and anaemia may occur; usually chronic mercury poisoning is a result of industrial poisoning and causes gastrointestinal or central nervous system manifestations including stomatitis, diarrhoea, ataxia, tremor, hyperreflexia, sensorineural impairment, and emotional instability (Mad Hatter syndrome). Synonym: hydrargyria, hydrargyrism, mercurialism. (05 Mar 2000) |
| mercury protoiodide | HgI;used externally as an ointment in eye diseases. Synonym: mercury protoiodide, yellow mercury iodide. (05 Mar 2000) |
| mercury radioisotopes | Unstable isotopes of mercury that decay or disintegrate emitting radiation. Hg atoms with atomic weights 185-195, 197, 203, 205, and 206 are radioactive mercury isotopes. (12 Dec 1998) |
| mercury subsalicylate | A powder used externally in the treatment of parasitic and fungus skin diseases. Synonym: mercury subsalicylate. (05 Mar 2000) |
| yellow mercury iodide | HgI;used externally as an ointment in eye diseases. Synonym: mercury protoiodide, yellow mercury iodide. (05 Mar 2000) |
| ARC | A stage before AIDS, with symptoms such as swollen lymph glands, long-lasting night sweats, fevers and unusual weight loss. Also commonly called symptomatic HIV infection. This term is no longer officially recognised by the CDC. (09 Oct 1997) |
| arc-flash conjunctivitis | Acute keratoconjunctivitis resulting from exposure to intense ultraviolet irradiation. Synonym: actinic conjunctivitis, arc-flash conjunctivitis, flash keratoconjunctivitis, ophthalmia nivalis, snow conjunctivitis, welder's conjunctivitis. (05 Mar 2000) |
| arc of buehler | <radiology> Persistent embryologic anastomosis between coeliac artery and superior mesenteric artery (12 Dec 1998) |