- a blind, tubular sac or process branching off from a canal or cavity, especially an abnormal, saclike herniation of the mucosal layer through the muscular wall of the colon.
Origin of diverticulum
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for diverticula
He regarded them as the cause of the gas bubbles to be found in diverticula.Handbook of Medical Entomology
William Albert Riley
These cells are diverticula lined by a continuation of the gastric mucous membrane.
These pouches or diverticula of the intestine form the so-called pyloric cca or appendices of these fish.
It has commenced to bud off diverticula, which subsequently become the tubules of the Wolffian body (vide fig. 13, wd).
The diverticula from the alimentary cavity form the water-vascular system and the somatic and splanchnic layers of mesoblast.
- any sac or pouch formed by herniation of the wall of a tubular organ or part, esp the intestines
C16: from New Latin, from Latin dēverticulum by-path, from dēvertere to turn aside, from vertere to turn
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 diverticula
"blind tube" (anatomical), 1819, Modern Latin, from Latin deverticulum "a bypath," from devertere "to turn aside" (see divert).
Online Etymology Dictionary, © 2010 Douglas Harper
- A pouch or sac branching out from a hollow organ or structure.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- A pouch or sac branching out from a portion of the gastrointestinal tract, especially the large intestine. A diverticulum can occur as a normal structure, or it can be caused by a hernia.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.