- Anatomy. communication between blood vessels by means of collateral channels, especially when usual routes are obstructed.
- Biology, Geology. connection between parts of any branching system, as veinlets in a leaf or branches of a stream.
- Surgery, Pathology. a joining of or opening between two organs or spaces that normally are not connected.
Origin of anastomosis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for anastomosis
Anastomosing, forming a net-work (anastomosis), as the veins of leaves, 50.The Elements of Botany
Where the anastomosis is less free the process is more prolonged.Manual of Surgery
Alexis Thomson and Alexander Miles
In such cases the anastomosis between branches of the coronary arteries is unusually free.Arteriosclerosis and Hypertension:
Louis Marshall Warfield
By means of anastomosis, if the course of a fluid is arrested in one vessel it can proceed along others.
It is by anastomosis that circulation is re-established in amputated limbs, and in aneurism when the vessel is tied.
- a natural connection between two tubular structures, such as blood vessels
- the surgical union of two hollow organs or parts that are normally separate
- the separation and rejoining in a reticulate pattern of the veins of a leaf or of branches
C16: via New Latin from Greek: opening, from anastomoun to equip with a mouth, from stoma mouth
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
Word Origin and History for anastomosis
1610s, medical or Modern Latin, from Greek anastomosis "outlet, opening," from anastomoein "to furnish with a mouth," from stoma "mouth" (see stoma). Related: Anastomotic.
Online Etymology Dictionary, © 2010 Douglas Harper
- The direct or indirect connection of separate parts of a branching system to form a network, especially among blood vessels.
- The surgical connection of separate or severed tubular hollow organs to form a continuous channel as between two parts of the intestine.
- An opening created by surgery, trauma, or disease between two or more normally separate spaces or organs.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.