appendix

US /əˈpen.dɪks/
UK /əˈpen.dɪks/
"appendix" picture
1.

a tube-shaped sac attached to the large intestine of humans and some other mammals, having no known function.

:
The surgeon removed his inflamed appendix.
An inflamed appendix can cause severe abdominal pain.
2.

a section or table of additional matter at the end of a book or document.

:
Please refer to Appendix A for more details.
The book includes an appendix with a glossary of terms.