Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A porous cup, often made of bone ash, used in assaying to separate precious metals from base elements such as lead.
  • n. The bottom or receptacle in a silver-refining furnace.
  • transitive v. To assay or separate from base metals in a cupel.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A small circular receptacle used in assaying gold or silver with lead.
  • v. To refine by means of a cupel.

from the GNU version of the Collaborative International Dictionary of English

  • n. A shallow porous cup, used in refining precious metals, commonly made of bone ashes (phosphate of lime).
  • transitive v. To refine by means of a cupel.

from The Century Dictionary and Cyclopedia

  • To perform the process of cupellation upon.
  • n. In metallurgy, a small vessel made of pulverized bone-earth, in the form of a frustum of a cone, with a cavity in the larger end, in which lead containing gold and silver is cupeled. See cupellation.
  • n. The hearth of a cupellation furnace in which silver is separated from lead; a test. See test, 2.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a small porous bowl made of bone ash used in assaying to separate precious metals from e.g. lead

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

French coupelle, from Old French, diminutive of coupe, cup, from Late Latin cuppa, drinking vessel.

from Wiktionary, Creative Commons Attribution/Share-Alike License

From French coupelle, mediaeval Latin cupella, diminutive of cupa ‘cask’.

Examples

Comments

Log in or sign up to get involved in the conversation. It's quick and easy.

  • Silver assays will be adjusted for slag and cupel losses.

    - contract for refining of lead and silver ore.

    January 22, 2009