cupel definition

  • noun:
    • A porous glass, usually made from bone ash, found in assaying to split up gold and silver coins from base elements such lead.
    • underneath or receptacle in a silver-refining furnace.
    • A small circular receptacle found in assaying silver or gold with lead.
    • A shallow porous cup, found in refining precious metals, commonly made of bone tissue ashes (phosphate of lime).
    • In metallurgy, a tiny vessel made of pulverized bone-earth, in the form of a frustum of a cone, with a cavity into the bigger end, which lead containing silver and gold is cupeled. See cupellation.
    • The hearth of a cupellation furnace which silver is separated from lead; a test. See test, 2.
    • a tiny porous dish made of bone tissue ash used in assaying to separate gold and silver from e.g. lead
    • A porous glass, usually made from bone tissue ash, used in assaying to separate gold and silver from base elements such as for instance lead.
    • underneath or receptacle in a silver-refining furnace.
    • a little circular receptacle found in assaying gold or silver with lead.
    • A shallow permeable glass, used in refining gold and silver coins, commonly manufactured from bone ashes (phosphate of lime).
    • In metallurgy, a small vessel made from pulverized bone-earth, by means of a frustum of a cone, with a cavity inside bigger end, by which lead containing gold and silver is cupeled. See cupellation.
    • The hearth of a cupellation furnace by which gold is separated from lead; a test. See test, 2.
    • a tiny permeable bowl made of bone tissue ash found in assaying to separate gold and silver from e.g. lead
  • verb-transitive:
    • To assay or split up from base metals in a cupel.
    • To refine by way of a cupel.
    • To assay or split up from base metals in a cupel.
    • To improve by means of a cupel.
  • verb:
    • To refine in the shape of a cupel.
    • To refine through a cupel.
  • others:
    • to execute the process of cupellation upon.
    • To perform the entire process of cupellation upon.

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  • Sentence for "cupel"
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