Definition of appendix in English:



  • 1Anatomy
    A tube-shaped sac attached to and opening into the lower end of the large intestine in humans and some other mammals.

    Also called vermiform appendix
    • ‘A programme of testing several thousand pathological specimens of appendixes and tonsils was started.’
    • ‘The myenteric plexus of appendices in children older than 3 years had thinner nerve branches and smaller ganglia than the colon specimens of the same age.’
    • ‘This is a rare tumour that usually affects the appendix or the small intestine.’
    • ‘The inside of the appendix forms a cul-de-sac that usually opens into the large intestine.’
    • ‘I found the appendix normal, but next to the appendix there was a caecum which had very strange, greasy patches.’
  • 2A section or table of additional matter at the end of a book or document.

    • ‘Oral evidence was given by 27 witnesses whose names and employment are listed in an appendix to this decision.’
    • ‘It is referred to in the appendix to the report, although it is not tabled as such.’
    • ‘Below is an appendix to the first essay I'm working on mentioned in the previous post.’
    • ‘In recognition of this we include a short appendix to Chapter 3 with some of the relevant elementary mathematics.’
    • ‘Such lists may be long enough to be documents in their own right or published as works of reference, but most are appendices to books, articles, and dissertations.’
    • ‘Those interested in the more arcane hagiographical matters will enjoy the appendices to this readable volume.’
    • ‘The book contains appropriate appendixes, which document the evolutionary improvement of tank formations, and excellent photographs, and maps that adequately depict the war.’
    • ‘Six sections and six appendices comprise the 213 pages of the book.’
    • ‘These codes were set out in an appendix to the leaflet, as follows.’
    • ‘A list of categories of classified information was voted as an appendix to the act.’
    • ‘In an appendix to Volume 2, the author addresses the question of how people were saved in Old Testament times before the coming of Christ.’
    • ‘Allegations against five other priests were included in an appendix to the report, published on Tuesday.’
    • ‘There are two matters which I wish to add by way of an appendix to this judgment.’
    • ‘It is this omission which prompts question 5 as set out in the appendix to this judgment.’
    • ‘I have reviewed this subject in accordance with my findings in an appendix to a work that I propose to publish when circumstances permit.’
    • ‘His recipe for this amalgam is included as an appendix to the present book.’
    • ‘The book concludes with detailed appendices, chapter notes, and a glossary.’
    • ‘The link between assessment and practice has been made clearer throughout the book and important documentation formerly in appendices has been placed in the text.’
    • ‘The final section consists of seven appendices and extensive notes, an absorbing read in themselves.’
    • ‘In the appendix to the chapter he suggests the standard deviation as a measure of risk.’
    supplement, addendum, postscript, codicil
    View synonyms


Appendix typically has the plural appendixes in the anatomical sense, and appendices when referring to a part of a book or document


Mid 16th century (in appendix (sense 2)): from Latin, from appendere ‘hang upon’ (see append). appendix (sense 1) dates from the early 17th century.