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retrogression

Definitions of retrogression
  1. noun
    returning to a former state
    synonyms: regress, regression, retroversion, reversion
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    type of:
    reversal
    a change from one state to the opposite state
  2. noun
    passing from a more complex to a simpler biological form
    synonyms: degeneration
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    types:
    abiotrophy
    a loss of vitality and a degeneration of cells and tissues not due to any apparent injury
    cataplasia
    (biology) degenerative reversion of cells or tissue to a less differentiated or more primitive form
    type of:
    shift, transformation, transmutation
    a qualitative change
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