The Collaborative International Dictionary of English v.0.48:

Parral \Par"ral\, Parrel \Par"rel\, n. [F. appareil. See
   Apparel, n.]
   1. (Naut.) The rope or collar by which a yard or spar is held
      to the mast in such a way that it may be hoisted or
      lowered at pleasure. --Totten.
      [1913 Webster]

   2. A chimney-piece. --Halliwell.
      [1913 Webster]