anas·to·mose \əˈnastəˌmōz, -ōs\verb (-ed/-ing/-s) Etymology: probably from French, anastomosis, from Greek anastomōsis transitive verb : to connect or join by anastomosis intransitive verb 1.: to communicate by anastomosis : inosculate 2.: to divide, subdivide, and reunite repeatedly < an anastomosing stream >