'Planchet' definitions:

Definition of 'planchet'

From: WordNet
noun
A flat metal disk ready for stamping as a coin [syn: planchet, coin blank]

Definition of 'Planchet'

From: GCIDE
  • Planchet \Planch"et\, n. [F. planchette a small board, dim. of planche. See Planch.] A flat piece of metal; especially, a disk of metal ready to be stamped as a coin. [1913 Webster]