Source : Webster's Revised Unabridged Dictionary (1913)

Ruche \Ruche\, n. [F. ruche ruche, beehive, OF. rusche a
   beehive, which was formerly made of the bark of trees; cf. W.
   rhisg, rhisgl, bark, gael. rusg bark, rind.]
   1. A plaited, quilled, or goffered strip of lace, net,
      ribbon, or other material, -- used in place of collars or
      cuffs, and as a trimming for women's dresses and bonnets.
      [Written also {rouche}.]

   2. A pile of arched tiles, used to catch and retain oyster
      spawn.