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supplementary material at the end of a book, article, document, or other text, usually of an explanatory, statistical, or bibliographic nature.
Synonyms: addendum, adjunct, appurtenance; addition, supplement.
an .

a process or projection.

Aeronautics. the short tube at the bottom of a balloon bag, by which the intake and release of buoyant gas is controlled.
Contemporary Examples

That appendix is taken more seriously because it is between the covers of a holy book.
The U.S. Military Should Hand Out Qurans in Afghanistan as a Good-Will Gesture Richard Miniter February 29, 2012

Comes with the funniest footnotes and appendix (no kidding) ever written.
This Week’s Hot Reads: Feb. 15, 2012 Lizzie Crocker, Malcolm Jones February 17, 2012

Did she skip over the ten full pages of source notes in the appendix?
Norman Mailer vs. Everyone Norman Mailer February 26, 2009

The procedure is now the most common surgery performed in the U.S.—more common than getting your tonsils or appendix removed.
The C-Section Backlash Danielle Friedman October 16, 2009

Historical Examples

A severe type, in which, if left alone, the appendix bursts into the abdominal cavity and death from general peritonitis results.
The New Gresham Encyclopedia. Vol. 1 Part 2 Various

The result of his observations I shall also insert in the appendix.
Experiments and Observations on Different Kinds of Air Joseph Priestley

Inquire courteously of Lupset on the appendix to my Copia and send it.
Erasmus and the Age of Reformation Johan Huizinga

Recipes in the main text are identified by number, those in the appendix by page.
Desserts and Salads Gesine Lemcke

appendix, No. 46; the substance of which is contained in Crookshank’s history, and in the appendix to the cloud of witnesses.
Biographia Scoticana (Scots Worthies) John Howie

It is added to the appendix of this new edition of her book.
Hetty’s Strange History Helen Jackson

noun (pl) -dices (-dɪˌsiːz), -dixes
a body of separate additional material at the end of a book, magazine, etc, esp one that is documentary or explanatory
any part that is dependent or supplementary in nature or function; appendage
(anatomy) See vermiform appendix

1540s, “subjoined addition to a document or book,” from Latin appendix “an addition, continuation, something attached,” from appendere (see append). Used for “small outgrowth of an internal organ” from 1610s, especially in reference to the vermiform appendix. This sense perhaps from or influenced by French appendix, where the term was in use from 1540s.

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

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

The vermiform appendix.

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.

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.


Read Also:

  • Appendicitis

    inflammation of the . Historical Examples A soldier who lost his speech at the battle of Loos has recovered it as the result of an operation for appendicitis. Punch, or the London Charivari, Volume 150, May 24, 1916 Various But, after all, it does “stage” more prettily than appendicitis or typhoid. A History of the […]

  • Appendicle

    a small appendage. Historical Examples appendicle: a small appendix: in some bees, a small sclerite at tip of labrum. Explanation of Terms Used in Entomology John. B. Smith noun a small appendage

  • Appendicolithiasis

    appendicolithiasis appendicolithiasis ap·pen·di·co·li·thi·a·sis (ə-pěn’dĭ-kō-lĭ-thī’ə-sĭs) n. Concretions in the vermiform appendix.

  • Appendico-

    appendico- appendico- pref. Vermiform appendix: appendicolithiasis.

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