Ap*pen"dix (&?;), n.; pl. E. Appendixes (&?;), L. Appendices (&?;). [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.

Ap*pen"dix, n. The vermiform appendix.

Ap*pen"dix, n. The vermiform appendix.

• a text added to the end of a book or an article, containing information that is is important to but not in the focus of the main text
  
• (anatomy) The vermiform appendix, an inner organ without known use that can become inflamed.