—n. 1. a fine powder, as of cuttlebone, formerly used to prevent ink from spreading in writing, or to prepare parchment for writing.
2. a fine powder, often of charcoal, used in transferring a design through a perforated pattern.
3. Also,pounce' bag".a small bag filled with pounce and struck against a perforated design.
—v.t. 1. to sprinkle, smooth, or prepare with pounce.
2. to trace (a design) with pounce.
3. to finish the surface of (hats) by rubbing with sandpaper or the like.