Source : Webster's Revised Unabridged Dictionary (1913)

Lycopodium \Ly`co*po"di*um\, n. [NL., from Gr. ? wolf + ?, ?, a
   foot.] (Bot.)
   A genus of mosslike plants, the type of the order
   {Lycopodiace[ae]}; club moss.

   {Lycopodium powder}, a fine powder or dust composed of the
      spores of Lycopodium, and other plants of the order
      {Lycopodiace[ae]}. It is highly inflammable, and is
      sometimes used in the manufacture of fireworks, and the
      artificial representation of lightning.