I. noun 1.
‹technical› a cross-connection between adjacent channels, tubes, fibres, or other parts of a network.
[Medicine] a connection made surgically between adjacent blood vessels, parts of the intestine, or other channels of the body.
• collateral veins are likely to develop across the anastomosis within a few months.
• [ mass noun]
a new technique of intestinal anastomosis was devised.
II. derivatives anastomotic adjective, noun
– origin late 16th cent.: modern Latin, from Greek anastomōsis, from anastomoun ‘provide with a mouth’.