Cupel dust

Cupel dust
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}.] [1913 Webster]

{Cupel dust}, powder used in purifying metals. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • 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).… …   The Collaborative International Dictionary of English

  • Copple dust — Cop ple dust Cupel dust. [Obs.] [1913 Webster] Powder of steel, or copple dust. Bacon. [1913 Webster] …   The Collaborative International Dictionary of English

  • coppel — 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).… …   The Collaborative International Dictionary of English

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