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 [ah-pen´diks] (pl. appen´dices, appendixes) (L.)
1. a slender outgrowth or appendage.
2. a small appendage near the juncture of the small intestine and the large intestine (ileocecal valve). An apparently useless structure, it can be the source of a serious illness, appendicitis. Called also vermiform appendix. adj., adj appendic´eal.
vermiform appendix appendix (def. 2).
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


, gen.


, pl.




(ă-pen'diks, -di-sis, -di-sēs, -dik-sĕz),
1. An appendage or appendixlike structure.
2. A wormlike intestinal diverticulum extending from the blind end of the cecum; it varies in length and ends in a blind extremity. Synonym(s): appendix vermiformis [TA], appendix ceci, processus vermiformis, vermiform appendage, vermiform appendix, vermiform process, vermix
[L. appendage, fr. ap-pendo, to hang something on]
Farlex Partner Medical Dictionary © Farlex 2012


n. pl. appen·dices (-dĭ-sēz′) or appen·dixes
Anatomy Any of several supplementary or accessory parts of a bodily organ or structure, especially the vermiform appendix of the large intestine.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


, pl. appendixes, appendices (ă-pendiks, -dik-sĕz, -di-sēz) [TA]
1. Synonym(s): appendage.
2. A wormlike intestinal diverticulum extending from the blind end of the cecum; it varies in length and ends in a blind extremity.
[L. appendage, fr. ap-pendo, to hang something on]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


1. The worm-like structure attached to the CAECUM at the beginning of the large intestine and known as the vermiform appendix.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
Appendixclick for a larger image
Fig. 42 Appendix . Location of appendix.



vermiform appendix

a small fingerlike projection from the tip of the CAECUM in the mammalian gut.

In herbivores the caecum and appendix are important, containing bacteria which facilitate the digestion of cellulose. In humans and other non-herbivores the caecum and appendix have no function. The appendix can become infected and must be removed surgically (appendectomy) if in this condition.

Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005


The worm-shaped pouch attached to the cecum, the beginning of the large intestine.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.


, pl. appendixes, appendices (ă-pendiks, -dik-sĕz, -di-sēz) [TA]
An appendage or appendixlike structure.
[L. appendage, fr. ap-pendo, to hang something on]
Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about appendix

Q. What Causes Acute Appendicitis? I've heard that appendicitis is a very common situation. What causes it to happen? Is there a way to avoid it?

A. Appendicitis is caused by an infection of the appendix, usually from bacterias that are already located in the abdomen. It is not a situation that can be avoided and can occur in a high prevalence in the population.

More discussions about appendix
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References in periodicals archive ?
Malawi's national tree, the rare Mulanje cedar, and the slow-growing mukula tree (a type of rosewood) of southern and eastern Africa, were also added to Appendix II.
The report has covered the global Appendix Cancer Treatmentmarket and analyzed its potential to determine the statistics and information about the size of the market, share percentage, challenges, opportunities, and growth factors.
According to many authors, the vermiform appendix is the only organ in the human body which has multiple definitive anatomical positions.
Purpose of reporting this case is that surgeons, especially residents should be aware of the anomalies of appendix and thorough inspection of the caecum should be made to avoid missing any anomalies.
These days, this position is often referred to as appendix carry because for a right-handed shooter the gun is situated roughly in line with the appendix.
A mutation in the gene GNAS, rare in colon cancer, was found to be quite frequent in appendix cancer, especially in mucinous adenocarcinomas (52 percent) and pseudomyxoma peritonei (72 percent).
In response to request, USFWS received a recommendation of Safari Club International (SCI) to transfer markhor from Appendix I to Appendix II.
Being in appendix I, markhor trophy has a high price, if it is downlisted its price will reduce and community will not give it as much protection because of its low prices, MoCC concluded adding that mountain communities could start killing more animals to maintain previous level of revenues.
I found the Appendix Carry holster to be very comfortable.
In 2005, a case report of a 36-year-old man with a 28 cm, torsed and necrotic appendix was reported.
A significant trend of increasing probability of histologically inflamed appendix with increasing severity of macroscopic feature was seen (X2 = 004 df=1, p Less than 0.005).
Anomalies of the appendix are rare, and usually discovered by chance during surgery for appendicitis.