Source : Webster's Revised Unabridged Dictionary (1913)

Fistulate \Fis"tu*late\ (?; 135), v. t. & i. [Cf. L. fistulatus
   furnished with pipes.]
   To make hollow or become hollow like a fistula, or pipe.
   [Obs.] ``A fistulated ulcer.'' --Fuller.

Source : WordNet®

fistulate
     adj : like a reed or tube [syn: {fistular}, {fistulous}]