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nounreturning to a former state
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type of: -
nounpassing from a more complex to a simpler biological form
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type of:
Words sounding like good retrogression
impression expression confession session possession profession depression obsession aggression discretion freshen procession oppression repression succession recession concession progression compression indiscretion regression repossession decompression precession immunosuppression intercession accession secession digression hessian