Source : Webster's Revised Unabridged Dictionary (1913)

Pixy \Pix"y\, Pixie \Pix"ie\, n.; pl. {Pixies}. [For Pucksy,
   from Puck.]
   1. An old English name for a fairy; an elf. [Written also
      {picksy}.]

   2. (Bot.) A low creeping evergreen plant ({Pyxidanthera
      barbulata}), with mosslike leaves and little white
      blossoms, found in New Jersey and southward, where it
      flowers in earliest spring.

   {Pixy ring}, a fairy ring or circle. [Prov. Eng.]

   {Pixy stool} (Bot.), a toadstool or mushroom. [Prov. Eng.]

Source : WordNet®

Pyxidanthera barbulata
     n : creeping evergreen shrub having narrow overlapping leaves
         and early white star-shaped flowers; of the pine barrens
         of New Jersey and the Carolinas [syn: {pyxie}, {pixie}, {pixy}]