[ uh-nas-tuh-moh-sis ]
See synonyms for: anastomotic on

noun,plural a·nas·to·mo·ses [uh-nas-tuh-moh-seez]. /əˌnæs təˈmoʊ siz/.
  1. Anatomy. communication between blood vessels by means of collateral channels, especially when usual routes are obstructed.

  2. Biology, Geology. connection between parts of any branching system, as veinlets in a leaf or branches of a stream.

  1. Surgery, Pathology. a joining of or opening between two organs or spaces that normally are not connected.

Origin of anastomosis

1605–15; <New Latin <Greek: opening. See ana-, stoma, -osis

Other words from anastomosis

  • a·nas·to·mot·ic [uh-nas-tuh-mot-ik], /əˌnæs təˈmɒt ɪk/, adjective

Words Nearby anastomosis Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use anastomosis in a sentence

  • From the semilunar anastomosis radiate two main groups of arterial branches, an ascending group and a descending one.

    Diseases of the Horse's Foot | Harry Caulton Reeks
  • Aneurysm by anastomosis is the name applied to a vascular tumour in which the arteries, veins, and capillaries are all involved.

    Manual of Surgery | Alexis Thomson and Alexander Miles
  • Thoracic anastomosis between internal mammary and intercostals, with branches of axillary.

  • anastomosis varies with the position of the ligature, but is very free between the various muscular branches of these vessels.

  • In the smaller vessels a frequent running together, or anastomosis, occurs.

    Special Report on Diseases of the Horse | United States Department of Agriculture

British Dictionary definitions for anastomosis


/ (əˌnæstəˈməʊsɪs) /

nounplural -ses (-siːz)
  1. a natural connection between two tubular structures, such as blood vessels

  2. the surgical union of two hollow organs or parts that are normally separate

  1. the separation and rejoining in a reticulate pattern of the veins of a leaf or of branches

Origin of anastomosis

C16: via New Latin from Greek: opening, from anastomoun to equip with a mouth, from stoma mouth

Derived forms of anastomosis

  • anastomotic (əˌnæstəˈmɒtɪk), adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012