Source : Webster's Revised Unabridged Dictionary (1913)

Redbreast \Red"breast`\ (-br?st`), n.
   1. (Zo["o]l.)
      (a) The European robin.
      (b) The American robin. See {Robin}.
      (c) The knot, or red-breasted snipe; -- called also {robin
          breast}, and {robin snipe}. See {Knot}.

   2. (Zo["o]l.) The long-eared pondfish. See {Pondfish}.