anastomose

1. (transitive, of streams and rivers, blood vessels, etc.) To join (two or more things) by anastomosis, to interconnect forming a network.Examples: "Happisburgh's humans discarded their stone tools close to one of several anastomosing, slow-flowing low-energy rivers, all of which meandered across a floodplain into a large estuary."transitiveusually

2. (intransitive, of rivers, blood vessels, etc.) To join by anastomosis.Examples: "Within eukaryotic cells, distant branches of the tree of life entwine and melt into an inseparable new lineage; they fuse, or anastomose, as fungal hyphae do."intransitiveusually