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gold

 (Au) [gōld]
chemical element, atomic number 79, atomic weight 196.967. (See Appendix 6.) Gold and many of its compounds are used in medicine, especially in treating rheumatoid arthritis. Gold salts are among the most toxic of therapeutic agents and must be given only under strict medical supervision. Toxic reactions may vary from mild to severe kidney or liver damage and blood dyscrasias.
gold 198 a radioisotope of gold having a half-life of 2.7 days, used as either a solid (seed) or a colloidal solution. It has been used for intracavitary or interstitial radiation therapy and has also been used, in colloidal form, as a scintiscanning agent. Symbol 198Au.
gold sodium thiomalate a gold preparation used as a disease-modifying antirheumatic drug in treatment of early active rheumatoid arthritis not controlled by nonsteroidal antiinflammatory drugs, rest, and physical therapy; administered intramuscularly.

gold (Au),

(gōld),
A yellow metallic element, atomic no. 79, atomic wt. 196.96654; 198Au (half-life of 2.694 days) is used to treat some tumor types, for radiation synovectomy, and in imaging; various gold salts are used to treat rheumatologic diseases.
Synonym(s): aurum

gold

(Au) (gōld) a chemical element, at. no. 79; gold compounds (all of which are poisonous) are used in medicine, chiefly in treating arthritis.
gold 198  a radioisotope of gold with a half-life of 2.69 days; it has been used as an intracavitary and interstitial antineoplastic and as a scintiscanning agent.
cohesive gold  chemically pure gold that forms a solid mass when properly condensed into a tooth cavity.
gold sodium thiomalate  a monovalent gold salt used in treatment of rheumatoid arthritis.

gold (Au)

Etymology: AS, geolu, yellow
a yellowish soft metallic element that occurs naturally as a free metal and as the telluride AuAgTe4. Its atomic number is 79; its atomic mass is 196.97. Gold has been highly valued since antiquity and has been and is used for currency, for ornamentation, and as a dental restorative material. It is usually hardened by alloying it with small amounts of nickel or copper. It is highly resistive to oxidation but can be dissolved in aqua regia and aqueous potassium cyanide. Gold salts, in which gold is attached to sulfur, are often used in the treatment, or chrysotherapy, of patients with rheumatoid arthritis but cause serious toxicity in about 10% of patients and some toxicity in 25% to 50%. See also chrysotherapy.
(1) GOLD

AU Assessing Ultegra. A clinical trial which measured platelet inhibition by GP IIb/IIIa inhibitors using the Ultegra Rapid Platelet Function Assay
Conclusion Platelet function inhibition 95% at 10 minutes after the start of therapy was associated with a significant decrease in the incidence of a major adverse cardiac event

(2) Gold

Drug slang A regional term for marijuana, as in Acapulco Gold; also, less specifically, crack cocaine or heroin
Homeopathy Aurum metallicum
Rheumatology See Gold compound
Vox populi A highly valuable metal

gold

(gōld)
A yellow metallic element, atomic no. 79, atomic wt. 196.96654; 198Au (half-life of 2.694 days) is used in the treatment of certain tumors and in imaging.
Synonym(s): aurum.
[L. aurum]

gold

(Au) (gōld)
A yellow metallic element used in the treatment of tumors and in imaging.
[L. aurum]

gold,

n a precious or noble metal; yellow, malleable, ductible, nonrusting; much used in dentistry in pure and alloyed forms.
Enlarge picture
Exophthalmic goiter.
gold alloys,
n.pl an alloy that contains gold; usually alloyed with copper, silver, platinum, palladium, and zinc. The alloying of gold enhances certain properties such as hardness, or creates a lower melting point for gold solder.
gold, cohesive,
n gold usually manufactured in thin sheets of foil, that has been treated to cause it to cohere, or stick together. This allows it to be easily formed into a variety of shapes.
gold compound,
n a drug containing gold salts, usually administered with other drugs in the treatment of rheumatoid arthritis. Various radioisotopes of gold have been used in diagnostic radiology and in the radiologic treatment of certain malignant neoplastic diseases.
gold, crystal,
n See gold, mat.
gold, fibrous,
gold file,
gold foil,
gold foil cylinder,
gold foil pellet,
n 1. an alloy, principally gold, used for cast restorations. Desired physical properties may be obtained by selecting those with varying ingredients and/or proportions. Acceptable alloys are classified by the American Dental Association (ADA) specifications according to Brinell hardness: Type A soft, Brinell 40 to 75; Type B medium, Brinell 70 to 100; Type C hard, Brinell 90 to 140.
n 2. an intracoronal cast restoration of gold alloy fabricated outside the oral cavity and cemented into the prepared cavity.
gold knife,
gold, mat,
n (crystal gold, sponge gold) a noncohesive form of pure gold prepared by electrodeposition. Sometimes used in the base of restorations and then veneered or overlaid with cohesive foil.
gold, powdered,
n the fine granules of pure gold, formed by atomizing the molten metal or by chemical precipitation. For clinical use, powdered gold is available either as clusters of the granules or as pellets of the powder contained in an envelope of gold foil.
gold saw,
gold sodium thiosulfate,
n an antirheumatic used in the treatment of rheumatoid arthritis.
gold, sponge,
n See gold, mat.
gold, white,
n a gold alloy with a high palladium content. It has a higher fusion range, lower ductility, and greater hardness than a yellow gold alloy.

gold

a chemical element, atomic number 79, atomic weight 196.967, symbol Au. See Table 6. Gold and many of its compounds are used in human medicine and occasionally in veterinary medicine. See also chrysotherapy.

gold-198
a radioisotope of gold having a half-life of 2.7 days and emitting gamma and beta radiation. Symbol 198Au.
gold colloid scintiscan
gold dust
a disease of aquarium fish caused by the flagellate protozoon Oodinium limnecicum. Affected fish develop a varnished look caused by a very heavy infestation of the protozoa on the skin and die within a few days.
gold standard
the ultimate standard to which all endeavors aspire.
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