regeneration

Noun
  1. (biology) growth anew of lost tissue or destroyed parts or organs (synset 113569937)
  2. Feedback in phase with (augmenting) the input (synset 113560465)
  3. The activity of spiritual or physical renewal (synset 101049861)
  4. Forming again (especially with improvements or removal of defects);
    Renewing and reconstituting (synset 100270807)

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