Definition of interpolation noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ɪnˌtɜːpəˈleɪʃn//
    ; NAmE NAmE//ɪnˌtɜːrpəˈleɪʃn//
    [uncountable, countable] (formal)
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  1. 1a remark that interrupts a conversation; the act of making a remark that interrupts a conversation He was quiet, but his rare interpolations showed good sense.
  2. 2a thing that is added to a piece of writing; the act of adding something to a piece of writing synonym insertion (2) The relevant passage is a later interpolation.
  3. 3(mathematics) the act of adding a value into a series by calculating it from surrounding known values The value was calculated by interpolation.