anastomose
verb
anas·to·mose ə-ˈna-stə-ˌmōz 
-ˌmōs
anastomosed; anastomosing
transitive verb
: to connect or join by anastomosis
intransitive verb
: to communicate or be joined by anastomosis
Example Sentences
Recent Examples on the Web We were immediately struck by the extensive, complex, anastomosing system of internal channels and branches present deep inside the premaxillae and maxillae, snaking and curving around the tooth roots. 
Darren Naish, Scientific American Blog Network, 16 June 2017 At Tolbachik, these networks of anastomosing lava flows will continue to grow until the rate of magma erupting at the surface drops. Erik Klemetti, WIRED, 10 Dec. 2012
Darren Naish, Scientific American Blog Network, 16 June 2017 At Tolbachik, these networks of anastomosing lava flows will continue to grow until the rate of magma erupting at the surface drops. Erik Klemetti, WIRED, 10 Dec. 2012 Word History
Etymology
probably back-formation from anastomosis
First Known Use
1697, in the meaning defined at transitive sense
Medical Definition
anastomose
verb
anas·to·mose ə-ˈnas-tə-ˌmōz, -ˌmōs
anastomosed; anastomosing
transitive verb
: to connect or join by anastomosis
intransitive verb
: to communicate by anastomosis