Source : Webster's Revised Unabridged Dictionary (1913)

Senecas \Sen"e*cas\, n. pl.; sing. {Seneca}. (Ethnol.)
   A tribe of Indians who formerly inhabited a part of Western
   New York. This tribe was the most numerous and most warlike
   of the Five Nations.

   {Seneca grass}(Bot.), holy grass. See under {Holy}.

   {Seneca eil}, petroleum or naphtha.

   {Seneca root}, or {Seneca snakeroot} (Bot.), the rootstock of
      an American species of milkworth ({Polygala Senega})
      having an aromatic but bitter taste. It is often used
      medicinally as an expectorant and diuretic, and, in large
      doses, as an emetic and cathartic. [Written also {Senega
      root}, and {Seneka root}.]

Source : WordNet®

Seneca
     n 1: Roman statesman and philosopher who was an advisor to Nero;
          his nine extant tragedies are modeled on Greek tragedies
          (circa 4 BC - 65 AD) [syn: {Lucius Annaeus Seneca}]
     2: a member of the Iroquoian people formerly living in New York
        state south of Lake Ontario
     3: the Iroquoian language spoken by the Seneca people

Source : Free On-Line Dictionary of Computing

Seneca
     
        {Oberon-V}