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Medical Dictionary

involution

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noun in·vo·lu·tion \ˌin-və-ˈlü-shən\

Medical Definition of involution

  1. 1a:  an inward curvature or penetrationb:  the formation of a gastrula by ingrowth of cells formed at the dorsal lip

  2. 2:  a shrinking or return to a former size <involution of the uterus after pregnancy>

  3. 3:  the regressive alterations of a body or its parts characteristic of the aging process; specifically :  decline marked by a decrease of bodily vigor and in women by menopause





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