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
Then a little lead (also weighed) is rolled up with the flake of silver and the two are melted at a great heat in a small vessel called a cupel, made by compressing bone ashes into a cup-shape in a steel mold.
June 28, 2008 at 3:53 am oh and I needz u to go ahead nd cum in on sunday 2. c we haz had a cupel uf layofs nd we sorta needz to pleh catchup
You need to do it in a cupel of circumstances, when you are working on something or talking to someone.
I sawd a led baloon fly on myfbusterz a cupel uv weeks ago.
January 12, 2008 at 1:28 pm salesman kitteh sez to cupel:
FIRE ASSAY* smelting with gold collector, separation, cupellation muffle or retort furnace, crucible, cupel taste (assay) lead, borax, soda, potash chemical
-- Ordinary lead is calcined in a cupel made of cinders or powdered bones; the lead is changed to a cinder which disappears into the cupel, and a button of silver remains.
That which would remain in the cupel if one should assay a phantom.
This is evaporated in a clay cupel called a _ghariya_ by which the mercury is got rid of and the gold left behind.
His words had a passion in them not usual in the calm, pure flow most natural to his uttered thoughts; white-hot iron we are familiar with, but white-hot silver is what we do not often look upon, and his inspiring address glowed like silver fresh from the cupel.