APPENDIX
appendix, vermiform appendix, vermiform process, cecal appendage
(noun) a vestigial process that extends from the lower end of the cecum and that resembles a small pouch
appendix
(noun) supplementary material that is collected and appended at the back of a book
Source: WordNet® 3.1
Etymology
Noun
appendix (plural appendices or appendixes)
(obsolete in general sense) Something attached to something else; an attachment or accompaniment.
A text added to the end of a book or an article, containing additional information.
(anatomy) The vermiform appendix, an inner organ that can become inflamed.
(anatomy) Any process, prolongation, or projection.
Usage notes
Both plural forms are found in various major dictionaries
Synonyms
• (something attached): addition, attachment; See also adjunct
Source: Wiktionary
Ap*pen"dix, n.; pl. E. Appendixes, L. Appendices(#). Etym: [L.
appendix, -dicis, fr. appendere. See Append.]
1. Something appended or added; an appendage, adjunct, or
concomitant.
Normandy became an appendix to England. Sir M. Hale.
2. Any literary matter added to a book, but not necessarily essential
to its completeness, and thus distinguished from supplement, which is
intended to supply deficiencies and correct inaccuracies.
Syn.
– See Supplement.
Source: Webster’s Unabridged Dictionary 1913 Edition