interpolation

Noun
  1. A message (spoken or written) that is introduced or inserted (synset 106734935)
    "with the help of his friend's interpolations his story was eventually told"; "with many insertions in the margins"
  2. (mathematics) calculation of the value of a function between the values already known (synset 105810738)
  3. The action of interjecting or interposing an action or remark that interrupts (synset 101070108)

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