noun, plural ap·pen·di·ces [uh-pen-duh-seez], ap·pen·dix·es. supplementary material at the end of a book, article, document, or other text, usually of an explanatory, statistical, or bibliographic nature.

Is it called appendix or appendices?

An appendix is a section at the end of an academic text where you include extra information that doesn't fit into the main text. The plural of appendix is “appendices.” In an APA Style paper, appendices are placed at the very end, after the reference list.

Is appendix an American word?

Word forms: plural appendixes language note: In British English, the plural form appendices (əpendɪsiːz ) is usually used for meaning [sense 2]. Your appendix is a small closed tube inside your body which is attached to your digestive system.