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Pronunciation: ă-nas′tō-mō′sis, -sez


  1. A natural communication, direct or indirect, between two blood vessels or other tubular structures.
  2. An operative union of two structures (vessels, ureters, nerves).
  3. An opening created by surgery, trauma, or disease between two or more normally separate spaces or organs.

See: communication

[G. anastomōsis, from anastomoō, to furnish with a mouth]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.