(v. t.) A metallic element, constituting the most precious metal used as a common commercial medium of exchange. It has a characteristic yellow color, is one of the heaviest substances known (specific gravity 19.32), is soft, and very malleable and ductile. It is quite unalterable by heat, moisture, and most corrosive agents, and therefore well suited for its use in coin and jewelry. Symbol Au (Aurum). Atomic weight 196.7.
(v. t.) Money; riches; wealth.
(v. t.) A yellow color, like that of the metal; as, a flower tipped with gold.
(v. t.) Figuratively, something precious or pure; as, hearts of gold.
Example Sentences:
(1) To investigate the relationship between Helicobacter pylori infection and nonsteroidal anti-inflammatory drug (NSAID) intolerance and the effect of gold use on the seroprevalence of H. pylori.
(2) This activity scheme uses as its base, dose potency measured as TD50, the chronic dose rate that actuarially halves the adjusted percentage of tumor-free animals at the end of the study (Gold et al., Environ.
(3) Coup leader Captain Amadou Sanogo on Friday pleaded for foreign help to preserve the territorial integrity of the former French colony, a major gold and cotton producer.
(4) A combined plot of all results from the four separate papers, which is ordered alphabetically by chemical, is available from L. S. Gold, in printed form or on computer tape or diskette.
(5) To determine the nature of the electrochemical treatment on the gold substrate, cyclic voltammetry was performed with various chemical solutions.
(6) As Russian companies Polymetal, Polyus Gold and Evraz race to join Eurasian Natural Resources as FTSE100 companies, despite their murky practices, because of London's incredibly lax listing requirements, one future scenario is becoming clearer.
(7) Injection of albumin-colloidal gold conjugates resulted in an insignificant uptake.
(8) IgG-gold also adhered to M cells and excess unlabeled IgG inhibited IgA-gold binding; thus binding was not isotype-specific.
(9) Colloidal gold immuno-electron microscopy is a powerful tool for defining antigenicity at the subcellular level.
(10) The effects of gold thioglucose loading on Se distribution, and on Se-dependent GSH peroxidase and GSH S-transferase, were examined in rats fed three dietary levels of Se (0, 0.2, and 2.0 ppm), and with or without adjuvant-induced inflammation.
(11) The night's special award went to armed forces broadcaster, BFBS Radio, while long-standing BBC radio DJ Trevor Nelson received the top prize of the night, the gold award.
(12) The sectioned worm tissues from each developmental stage were embedded in Lowicryl HM 20 medium, stained with infected serum IgG and protein A gold complex (particle size: 12 nm) and observed by electron microscopy.
(13) We concluded that gold labeling with polymyxin B is useful in localizing the binding sites of polymyxin.
(14) Heads you 'own it' Ian Read, the Scottish-born accountant who runs the biggest drug firm in the US carries in his pocket a special gold coin, about the size and weight of a £2 piece.
(15) Evidence for Golgi apparatus-associated processing of oligosaccharides in the ER was obtained by lectin-gold cytochemistry revealing the presence of the galactose (beta 1----4)N-acetylglucosamine sequence and sialic acid residues.
(16) One of them got a gold medal in medicine, for being top of the year, but they dropped out for exactly these reasons.” These are not alarmist stories being spread by campaigners.
(17) Different techniques for attaching the gold cylinders to the frameworks were used.
(18) A post-embedding cytochemical technique using WGA-gold complexes was used and the quantitative intensity of WGA-labeling on the surface membrane of platelets after convulxin stimulation was determined.
(19) Only 75% of the granules stained for PRL by the protein-A gold technique; the other 25% stained for neither PRL nor GH.
(20) Smoking behaviour, self-reported mood and cardiac activity were examined in 12 "sedative" and 12 "stimulant" smokers, defined using Mangan and Golding's questionnaire.
Platinum
Definition:
(n.) A metallic element, intermediate in value between silver and gold, occurring native or alloyed with other metals, also as the platinum arsenide (sperrylite). It is heavy tin-white metal which is ductile and malleable, but very infusible, and characterized by its resistance to strong chemical reagents. It is used for crucibles, for stills for sulphuric acid, rarely for coin, and in the form of foil and wire for many purposes. Specific gravity 21.5. Atomic weight 194.3. Symbol Pt. Formerly called platina.
Example Sentences:
(1) The results demonstrated that K2PtCl4 was bound to a greater degree than CDDP in this system with 3-5 and 1-2 platinum atoms respectively, bound per transferrin molecule.
(2) • This article was amended on 1 September 2014 because an earlier version described Platinum Property Partners as a buy-to-let mortgage lender.
(3) The potential loss of NH3 in such platinum complexes may lead to additional products over time.
(4) Platinum deer mice are conspicuously pale, with light ears and tail stripe.
(5) The diameters of regenerating crypts were measured at various times after X-rays and cis-platinum given either alone or in combination.
(6) Cis-platinum treatment is considered to be effective and useful for gynecological cancer.
(7) Analyses of mitotic activities and chromosome aberrations in lymphocytes of human peripheral blood have been utilized to evaluate 24-hour cytotoxic and genetic effect of various concentrations (0, 12, 60, 120, 240, 360 mumol l-1) of ethylmalonate platinum (EM-Pt) in vitro.
(8) Excretion into urine within 24 hours was in the range of 54.2% to 92.2% of the administered platinum.
(9) The time dependency of the antitumour activity of (-)-(R)-2-aminomethylpyrrolidine(1,1-cyclobutanedicarboxylato++ +)platinum(II) monohydrate (DWA2114R) was examined in mice inoculated i.p.
(10) Primary therapy consisted of surgery, usually unilateral oophorectomy, and cis-platinum-based VAB chemotherapy.
(11) Methods have been reviewed for alkylating agents, platinum compounds, antitumour antibiotics, antimetabolites, alkaloids, suramin, 1-hydroxy-3-amino-propylidene-1,1-bisphosphonate and tamoxifen.
(12) We conclude that the major difference between these two lines was the glutathione-related detoxification of platinum.
(13) In order to determine possible risk factors and to assess the value of platinum microcoils added to polyvinyl alcohol particles in preoperative embolization of cerebral arteriovenous malformations in adults, we reviewed our experience with this procedure.
(14) A mixed platinum (II) complex with tert-butylamine and doxorubicin (coordinated via the amino-group) has been synthesized and tested for antitumor activity.
(15) Unlike cisplatin, bis(platinum) complex binding does not unwind supercoiled DNA.
(16) F-Pt in serum remained more than 90% of total platinum following IP CBDCA until 12 hours after administration.
(17) These data suggest that carrier ligand effects seen in resistant cell lines may be due, in part, to differences in accumulation of platinum, repair of Pt-DNA adducts, and tolerance of Pt-DNA adducts.
(18) To obtain pharmacokinetic data on anticancer drugs, we measured concentrations of plasma and tumor tissue for Cis-platinum, Adriamycin and Bleomycin in operated patients and xenografts.
(19) The effect of various fuel additives on the ability of platinum-palladium catalytic converters to remove the carbon monoxide and hydrocarbon components of automotive exhaust has been examined.
(20) Afferent nerve activity is recorded with a monopolar platinum wire electrode from filaments of the mesenteric nerves that run between the artery and vein supplying the segment.