Addendum vs. Appendix

Addendumnoun

Something to be added; especially text added as an appendix or supplement to a document.

Addendumnoun

A postscript.

Addendumnoun

(engineering) The height by which the tooth of a gear projects beyond (outside for external, or inside for internal) the standard pitch circle or pitch line.

Addendumnoun

A thing to be added; an appendix or addition.

Addendumnoun

textual matter that is added onto a publication; usually at the end

Addendumnoun

an item of additional material added at the end of a book or other publication.

Addendumnoun

the radial distance from the pitch circle of a cogwheel or wormwheel to the crests of the teeth or ridges.

Addendum

An addendum or appendix, in general, is an addition required to be made to a document by its author subsequent to its printing or publication. It comes from the Latin gerundive addendum, plural addenda, from addere (lit. ''give toward'', compare with memorandum, agenda, corrigenda).

Appendixnoun

Something attached to something else; an attachment or accompaniment.

Appendixnoun

Specifically, a text added to the end of a book or an article, containing additional information.

Appendixnoun

(anatomy) The vermiform appendix, an inner organ that can become inflamed.

Appendixnoun

Something appended or added; an appendage, adjunct, or concomitant.

Appendixnoun

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.

Appendixnoun

The vermiform appendix.

Appendixnoun

supplementary material that is collected and appended at the back of a book

Appendixnoun

a vestigial process that extends from the lower end of the cecum and that resembles a small pouch