Appendix, from the Latin word of the same name, may refer to an Index / Bibliography.
Appendix , a reference section at the end of a book
In anatomy, a section at the end of an organ; in particular the:
Vermiform appendix (often referred to as simply the "appendix"), a part of the human digestive system.
Right auricular appendix, a conical pouch on the right atrium of the heart.
Left auricular appendix, a conical pouch on the left atrium of the heart.
Appendix of the epididymis, a detached efferent duct of the epididymis.
Appendix testis, a vestigial remnant of the M├╝llerian duct.
Epiploic appendix, one of several small pouches of fat on the peritoneum along the colon and rectum.
Fibrous appendix of the liver, a band on the left of the liver.
Appendix of the laryngeal ventricle, a sac that extends from the laryngeal ventricle.
Mesoappendix, the portion of the mesentery that connects the ileum to the vermiform appendix.
Appendix , an addition or addendum to a contract