n.; pl. E. Appendixes L. Appendices [ L. appendix, -dicis, fr. appendere. See Append. ] 1. Something appended or added; an appendage, adjunct, or concomitant. [ 1913 Webster ]
Normandy became an appendix to England. Sir M. Hale. [ 1913 Webster ]
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. [ 1913 Webster ]
3. (Anatomy) The vermiform appendix. [ Webster 1913 Suppl. ]