inosculation

noun

1. a natural or surgical joining of parts or branches of tubular structures so as to make or become continuous

   noun.body

   Synonyms anastomosis

   Source: WordNet 3.0

2. The junction or connection of vessels, channels, or passages, so that their contents pass from one to the other; union by mouths or ducts; anastomosis; intercommunication; as, <i>inosculation</i> of veins, etc.

   noun

   Source: webster1913