a thing to be added; an addition.
an appendix to a book.
the radial distance between the tip of a gear tooth and the pitch circle of a gear or the pitch line of a rack.: Compare dedendum.
Also called addendum circle. an imaginary circle touching the tips of the teeth on a gear.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use addendum in a sentence
Consider this a short addendum to that review that puts the spotlight on the iPad.iPadOS 15 mini-review: It’s all about the home screen | Samuel Axon | October 7, 2021 | Ars Technica
One thing that stands out in the Senate report is the addendums, a sheaf of reports and legal documents that purport to show oddities and dubious behavior about the election.A new report reinforces the danger of a president who lives in an echo chamber | Philip Bump | October 7, 2021 | Washington Post
With the addendum, Alaska joins Idaho — the first to implement statewide crisis standards of care amid the delta surge — in covering health-care providers making patient decisions according to their policies and available resources.Alaska to activate crisis standards of care as FDA authorizes Pfizer vaccine booster for some | Annabelle Timsit, Meryl Kornfield, Felicia Sonmez, María Paúl | September 23, 2021 | Washington Post
In addition, there are a plethora of addenda that may apply to a real estate transaction.
“Because of the crime-free addendum I was able to scare the people off,” she said.County’s ‘Crime-Free Housing’ Programs Walk Fine Line Between Safety, Surveillance | Jesse Marx | March 16, 2021 | Voice of San Diego
When Sisley released a photo of the addendum, taken by a friend in the legislature, reporters flooded Biggs with questions.Why Did America’s Only Pot Researcher Suddenly Get Fired? | Abby Haglage | July 10, 2014 | THE DAILY BEAST
One can only hope that he will not repeat this unfortunate addendum.
Hopefully you could include it as an addendum if not actually include it within the article itself.
That felt like cheating, I imagined my own reaction to reading a book and then finding such an addendum at the end.Speak, Faulty Memory: Why Memoir Writing Is Harder Than You Think | Dave Bry | April 3, 2013 | THE DAILY BEAST
Mike Brown had noted that the names of the women who were pregnant have an addendum, “and her unborn child.”
In his pocket was a bottle, carefully corked, empty save for a little roll of paper, which proved to be the addendum to the log.Dracula | Bram Stoker
And here, perchance, should the story end, for the after-history of Joachim Murat is a tragical addendum to that happy dnouement.Romance of Roman Villas | Elizabeth W. (Elizbeth Williams) Champney
We must therefore regard Cibras as a mere addendum to, an extraneous element in, the tragedy, not as an integral part of it.Prince Zaleski | M.P. Shiel
This was an addendum in "the colonel's own handwriting" and it closed with "pray for me."Sons and Fathers | Harry Stillwell Edwards
This last arc defines the addendum of the escape-wheel teeth.Watch and Clock Escapements | Anonymous
British Dictionary definitions for addendum
something added; an addition
a supplement or appendix to a book, magazine, etc
the radial distance between the major and pitch cylinders of an external screw thread
the radial distance between the pitch circle and tip of a gear tooth
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012