Hypertext Webster Gateway: "cupel"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Cupel \Cu"pel\ (k[=u]"p[e^]l), n. [LL. cupella cup (cf. L.
cupella, small cask, dim. of cupa) : cf. F. coupelle. See
{Cup}, and cf. {Coblet}.]
A shallow porous cup, used in refining precious metals,
commonly made of bone ashes (phosphate of lime). [Written
also {coppel}.]
{Cupel dust}, powder used in purifying metals.
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Cupel \Cu*pel"\ (k[-u]*p[e^]l"), v. t. [imp. & p. p. {Cupelled}
(-p?ld"); p. pr. & vb. n. {Cupelling}.]
To refine by means of a cupel.
From WordNet (r) 1.7 (wn)
cupel
n : small porous bowl made of bone ash used in assaying to
separate precious metals from e.g. lead [syn: {bone-ash
cup}, {refractory pot}]
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