noun, plural a·nas·to·mo·ses [uh-nas-tuh–moh-seez] /əˌnæs təˈmoʊ siz/.
- 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.
noun plural -ses (-siːz)
- 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
1610s, medical or Modern Latin, from Greek anastomosis “outlet, opening,” from anastomoein “to furnish with a mouth,” from stoma “mouth” (see stoma). Related: Anastomotic.
n. pl. a•nas•to•mo•ses (-sēz)
- 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.