Cupel

3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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]

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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.
     [1913 Webster]

From WordNet (r) 2.0 [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}]
       [also: {cupelling}, {cupelled}]