Source : Webster's Revised Unabridged Dictionary (1913)

Tracheotomy \Tra`che*ot"o*my\, n. [Trachea + Gr. ? to cut: cf.F.
   tracheotomie.] (Surg.)
   The operation of making an opening into the windpipe.

Source : WordNet®

tracheotomy
     n : a surgical operation that creates an opening into the
         trachea with a tube inserted to provide a passage for
         air; performed when the pharynx is obstructed by edema or
         cancer or other causes [syn: {tracheostomy}]