1. a cross-connection between adjacent channels, tubes, fibres, or other parts of a network.technical
▪ a connection made surgically between adjacent blood vessels, parts of the intestine, or other channels of the body:technical"collateral veins are likely to develop across the anastomosis within a few months"
Word Originlate 16th century: modern Latin, from Greek anastomōsis, from anastomoun ‘provide with a mouth’.