Source : Webster's Revised Unabridged Dictionary (1913)

Anastomose \A*nas"to*mose\, v. i.
   Of any channels or lines, to meet and unite or run into each
   other, as rivers; to coalesce; to interjoin.

Anastomose \A*nas"to*mose\, v. i. [imp. p. p. {Anastomozed}; p.
   pr. & vb. n. {Anastomosing}.] [Cf. F. anastomoser, fr.
   anastomose. See {Anastomosis}.] (Anat. & Bot.)
   To inosculate; to intercommunicate by anastomosis, as the
   arteries and veins.

         The ribbing of the leaf, and the anastomosing network
         of its vessels.                          --I. Taylor.

Source : WordNet®

anastomose
     v 1: come together or open into each other; "the blood vessels
          anastomose" [syn: {inosculate}]
     2: cause to join or open into each other by anastomosis;
        "anastomose blood vessels" [syn: {inosculate}]