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  1. addendum

    • IPA[əˈdendəm]


    • n.
      an item of additional material added at the end of a book or document, typically in order to correct, clarify, or supplement something.;the radial distance from the pitch circle of a cogwheel, worm wheel, etc., to the crests of the teeth or ridges.
    • noun: addendum, plural noun: addenda