Reeding /(rēd"ĭng)/

Reed·ing

Reeding

n.
  1. A small convex molding; a reed (see Illust. (i) of Molding); one of several set close together to decorate a surface; also, decoration by means of reedings; -- the reverse of fluting. (Arch.)
  2. The nurling on the edge of a coin; -- commonly called milling.