What is the meaning of Addendum?
Something to be added; especially text added as an appendix or supplement to a document.
A postscript.
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.
inflection of addendus:
nominative/accusative/vocative neuter singular
addendum (something to be added; especially text added as an appendix or supplement to a document)
Source: wiktionary.orgSearch words containing