appendix

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. An appendage.
2. n. A collection of supplementary material, usually at the end of a book.
3. n. The vermiform appendix.
4. n. Anatomy A supplementary or accessory part of a bodily organ or structure.

Century Dictionary and Cyclopedia

1. n. Something appended or added; an adjunct, concomitant, appendage, or accessory.
2. n. Specifically— An addition appended to a document or book relating to the main work, usually consisting of explanatory or statistical matter adding to its value, but not essential to its completeness, and thus differing from a supplement, which properly is intended to supply deficiencies and correct inaccuracies.
3. n. In anatomy, a process, prolongation, or projection. See the phrases following.
4. To add as an appendix.

Wiktionary

1. n. Something attached to something else; an attachment or accompaniment.
2. n. Specifically, a text added to the end of a book or an article, containing information that is important to but is not the main idea of the main text
3. n. anatomy The vermiform appendix, an inner organ without known use that can become inflamed.

GNU Webster's 1913

1. n. Something appended or added; an appendage, adjunct, or concomitant.
2. n. 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.
3. n. (Anatomy) The vermiform appendix.

WordNet 3.0

1. n. a vestigial process that extends from the lower end of the cecum and that resembles a small pouch
2. n. supplementary material that is collected and appended at the back of a book