What's the difference between copper and pewter?

Copper


Definition:

  • (n.) A common metal of a reddish color, both ductile and malleable, and very tenacious. It is one of the best conductors of heat and electricity. Symbol Cu. Atomic weight 63.3. It is one of the most useful metals in itself, and also in its alloys, brass and bronze.
  • (n.) A coin made of copper; a penny, cent, or other minor coin of copper.
  • (n.) A vessel, especially a large boiler, made of copper.
  • (n.) the boilers in the galley for cooking; as, a ship's coppers.
  • (v. t.) To cover or coat with copper; to sheathe with sheets of copper; as, to copper a ship.

Example Sentences:

  • (1) This result was confirmed by atomic absorption spectroscopy, which indicated a stoicheiometry for copper and manganese of approx.
  • (2) Serum copper concentration also was measured in dams and kids in a control herd that had no history of ataxia.
  • (3) Copper therapy was applied to 7-day-old mutant mice.
  • (4) Several derivatives and analogs of the recently reported antiproliferative and antitumor agent trans-bis(salicylaldoximato)copper(II) (CuSAO2) have been prepared and tested for antiproliferative activity against L1210 leukemia cells in vitro.
  • (5) Accumulation of copper was not detected in the brain or small intestines of LEC rats until 13 mo.
  • (6) The potential use of ancrod, a purified isolate from the venom of the Malaysian pit viper, Agkistrodon rhodostoma, in decreasing the frequency of cyclic flow variations in severely stenosed canine coronary arteries and causing thrombolysis of an acute coronary thrombus induced by a copper coil was evaluated.
  • (7) The affinity of haFGF for copper was also confirmed to be higher than that of hbFGF using a copper affinity HPLC column.
  • (8) In the present study, maternal and fetal zinc (Zn), copper (Cu), manganese (Mn), iron (Fe), magnesium (Mg), and calcium (Ca) status has been studied in Sprague-Dawley (SD) and Wistar rats.
  • (9) This study provides evidence for a maternal yolk factor associated with increased tolerance and resistance of larvae to copper.
  • (10) With copper-ion catalysis, ligands inhibit competitively.
  • (11) No decisive numerical criterion was found that could be used to separate normal from abnormal copper concentrations because of this continuous array.
  • (12) No clear population trends were seen in dental disease incidence except for cemental caries which were found among Copper and Bronze Age remains.
  • (13) At 2 months of age there were no major differences in growth or health detected in infants fed the different copper intakes.
  • (14) In order to determine the specific action of cadmium on bone metabolism, the effect of cadmium on alkaline phosphatase activity, a marker enzyme of osteoblasts, was compared with that of other divalent heavy metal ions, i.e., zinc, manganese, lead, copper, nickel and mercury (10 microM each), using cloned osteoblast-like cells, MC3T3-E1.
  • (15) However, two observations suggested that surface epithelial loss alone was not sufficient to trigger the proliferative response to DOC: intracolonic instillation of DOC followed by removal of the DOC solution at 1 h, at which time surface epithelial loss was maximal, did not result in an increase in ornithine decarboxylase activity or [3H]dThd incorporation into DNA when these parameters were assessed at 4 h or 12 to 48 h, respectively; phenidone, an antioxidant and radical scavenger, and bis[(3,5-diisopropyl-salicylato) (O,O) copper(II), a lipophilic agent with superoxide dismutase activity, abolished the DOC mediated proliferative response but did not prevent the early loss of surface cells.
  • (16) Retinal changes should be reversible by short term systemic copper administration.
  • (17) Wilson disease is due to a genetically determined impairment of copper excretion from liver into bile resulting in copper overload of the organism.
  • (18) Arachidonic acid was also increased in plasma and liver phospholipids in low copper rats.
  • (19) These results suggest that HVE cells are more susceptible to concentration-dependent copper cytotoxicity than HAIN-55 cells are, and that copper could induce vascular endothelial injury, which may be involved in the pathogenesis of cardiovascular disease.
  • (20) Cadmium and copper content was determined by atomic absorption spectrophotometry from four tissue types; young blade, old blade, young stipe and old stipe.

Pewter


Definition:

  • (n.) A hard, tough, but easily fusible, alloy, originally consisting of tin with a little lead, but afterwards modified by the addition of copper, antimony, or bismuth.
  • (n.) Utensils or vessels made of pewter, as dishes, porringers, drinking vessels, tankards, pots.

Example Sentences:

  • (1) Scores of archaeologists working in a waterlogged trench through the wettest summer and coldest winter in living memory have recovered more than 10,000 objects from Roman London , including writing tablets, amber, a well with ritual deposits of pewter, coins and cow skulls, thousands of pieces of pottery, a unique piece of padded and stitched leather – and the largest collection of lucky charms in the shape of phalluses ever found on a single site.
  • (2) The pewter trait is allelic with and phenotypically identical to platinum, and represents an independent recurrence of this mutant.
  • (3) All of them were employed in small (not more than 30 persons) pewter factories and were randomly selected from those regularly controlled by the National Health Service, Occupational Health Unit of Brescia (USSL 41).
  • (4) An interview with Messud in New York magazine – in the form of an "at home" with her and her husband James Wood, once of this parish and now book critic at the New Yorker – kicks off by telling us that her hair has turned grey, swiftly qualified to a somewhat classier-sounding pewter, which, luckily, looks well with her shirt and necklace.
  • (5) Naked bulbs sit in glass lantern boxes on the walls; tiny pewter plates are laid on light oak refectory tables.
  • (6) Other finds include an amber charm in the shape of a gladiator's helmet, which may have been a good luck charm for an actual gladiator; a horse harness ornament combining two lucky symbols, a fist and a phallus, plus clappers to make a jingling sound as the horse moved; and a set of fine-quality pewter bowls and cups, which were deliberately thrown into a deep well.
  • (7) The results of a survey performed in 50 pewter manufacturing workers, as well as in 16 workmen involved in artistic bronze melting, are also reported.
  • (8) Compared with 1980, say, when Golding's Rites of Passage pipped Burgess's Earthly Powers , this is an age of pewter.
  • (9) The woman beside me – Stars ’n’ Stripes Hat – was wearing a pewter elephant pendant.
  • (10) It is the same with Miss Amelia Martin in "The Milliner's Mishap", eyeing up her friend's wedding breakfast ("pewter-pots at the corners; pepper, mustard and vinegar in the centre; vegetables on the floor") – a world so vivid and variegated to the person writing about it that there is almost too much to set down.
  • (11) I slammed the rusting door, and set off with my binoculars through a forest washed pewter with frost.