Source : Webster's Revised Unabridged Dictionary (1913)

Touchwood \Touch"wood`\, n. [Probably for tachwood; OE. tache
   tinder (of uncertain origin) + wood.]
   1. Wood so decayed as to serve for tinder; spunk, or punk.

   2. Dried fungi used as tinder; especially, the {Polyporus
      igniarius}.

Source : WordNet®

touchwood
     n : material for starting a fire [syn: {kindling}, {tinder}, {spunk},
          {punk}]