\Top"knot`\, n.
1. A crest or knot of feathers upon the head or top, as of a
   bird; also, an orgamental knot worn on top of the head, as
   by women.
         A great, stout servant girl, with cheeks as red as
         her topknot.                          --Sir W.
                                               Scott.
2. (Zo["o]l.) A small Europen flounder ({Rhoumbus
   punctatus}). The name is also applied to allied species.