Source : Webster's Revised Unabridged Dictionary (1913)

Wig \Wig\, n. [Abbreviation from periwig.]
   1. A covering for the head, consisting of hair interwoven or
      united by a kind of network, either in imitation of the
      natural growth, or in abundant and flowing curls, worn to
      supply a deficiency of natural hair, or for ornament, or
      according to traditional usage, as a part of an official
      or professional dress, the latter especially in England by
      judges and barristers.

   2. An old seal; -- so called by fishermen.

   {Wig tree}. (Bot.) See {Smoke tree}, under {Smoke}.

Source : WordNet®

wig tree
     n : Old World shrub having large plumes of yellowish feathery
         flowers resembling puffs of smoke [syn: {Venetian sumac},
          {Cotinus coggygria}]