addendum

The definition of an addendum is something additional or something that is added, especially to the end of a book.

(noun)

An example of the word addendum is when a legal document is written and an extra piece of information is added later.

See addendum in Webster's New World College Dictionary

noun pl. addenda

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: L, ger. of addere, add

See addendum in American Heritage Dictionary 4

noun pl. ad·den·da (-də)

Something added or to be added, especially a supplement to a book.

Origin:

Origin: Latin

Origin: , neuter gerundive of addere, to add; see add

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