The definition of an addendum is something additional or something that is added, especially to the end of a book.
An example of the word addendum is when a legal document is written and an extra piece of information is added later.
- a thing added or to be added
- an appendix or supplement to a book, etc.
- the part of a gear tooth that projects beyond the pitch circle, or the distance that it projects
Origin of addendumL, gerund, gerundive of addere, add
Something added or to be added, especially a supplement to a book.
Origin of addendumLatin, neuter gerundive of addere, to add; see add.
(plural addenda or addendums)
From the gerundive of Latin addere (“to add”).
addendum - Legal Definition
An addition to a document.