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[dahy-ver-tik-yuh-luh m] /ˌdaɪ vərˈtɪk yə ləm/
noun, plural diverticula
[dahy-ver-tik-yuh-luh] /ˌdaɪ vərˈtɪk yə lə/ (Show IPA).
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
1640-50; < Latin, variant of dēverticulum byway, tributary, means of escape, equivalent to dēverti- (combining form of dēvertere, equivalent to dē- de- + vertere to turn) + -culum -cule2
Related forms
diverticular, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for diverticulum


noun (pl) -la (-lə)
any sac or pouch formed by herniation of the wall of a tubular organ or part, esp the intestines
Derived Forms
diverticular, adjective
Word Origin
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
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Word Origin and History for diverticulum

"blind tube" (anatomical), 1819, Modern Latin, from Latin deverticulum "a bypath," from devertere "to turn aside" (see divert).

Online Etymology Dictionary, © 2010 Douglas Harper
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diverticulum in Medicine

diverticulum di·ver·tic·u·lum (dī'vûr-tĭk'yə-ləm)
n. pl. di·ver·tic·u·la (-lə)
A pouch or sac branching out from a hollow organ or structure.

di'ver·tic'u·lar adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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diverticulum in Science

Plural diverticula
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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