appendix

[uh-pen-diks]
noun, plural appendixes, appendices [uh-pen-duh-seez] .
1.
supplementary material at the end of a book, article, document, or other text, usually of an explanatory, statistical, or bibliographic nature. addendum, adjunct, appurtenance; addition, supplement.
2.
3.
Anatomy.
a.
a process or projection.
4.
Aeronautics. the short tube at the bottom of a balloon bag, by which the intake and release of buoyant gas is controlled.

Origin:
1535–45; < Latin: appendage, equivalent to append(ere) to append + -ix (equivalent to -ic- noun suffix + -s nominative singular ending)

appendix, index, supplement (see synonym study at the current entry).


Appendix, supplement both mean material added at the end of a book. An appendix gives useful additional information, but even without it the rest of the book is complete: In the appendix are forty detailed charts. A supplement, bound in the book or published separately, is given for comparison, as an enhancement, to provide corrections, to present later information, and the like: A yearly supplement is issued.


Appendices, a plural borrowed directly from Latin, is sometimes used, especially in scholarly writing, to refer to supplementary material at the end of a book.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
appendix (əˈpɛndɪks)
 
n , pl -dices, -dixes
1.  a body of separate additional material at the end of a book, magazine, etc, esp one that is documentary or explanatory
2.  any part that is dependent or supplementary in nature or function; appendage
3.  anatomy See vermiform appendix
 
[C16: from Latin: an appendage, from appendere to append]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

appendix
1540s, "subjoined addition to a document or book," from L. appendix "something attached," from appendere (see append). Used for "small outgrowth of an internal organ" from 1610s, especially in reference to the vermiform appendix.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

appendix ap·pen·dix (ə-pěn'dĭks)
n. pl. ap·pen·dix·es or ap·pen·di·ces (-dĭ-sēz')

  1. A supplementary or an accessory part of an organ or a structure of the body.

  2. The vermiform appendix.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
appendix   (ə-pěn'dĭks)  Pronunciation Key 
Plural appendixes or appendices (ə-pěn'-dĭ-sēz')
A tubular projection attached to the cecum of the large intestine and located on the lower right side of the abdomen. Also called vermiform appendix.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary

appendix definition


A small saclike organ located at the upper end of the large intestine. The appendix has no known function in present-day humans, but it may have played a role in the digestive system in humans of earlier times. The appendix is also called the vermiform appendix because of its wormlike (“vermiform”) shape.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences
For those who wish to further explore this approach to health, Web sites and
  other resources are listed in an appendix.
If you are directed to an appendix, read the appendix then return to where you
  left off in the text.
With that in mind, he includes a short glossary and lists of spices in his
  appendix, detailing essential and non-essential spices.
But some pellets may find their way into the appendix.
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