involution

  1. Noun.  entanglement; a spiralling inwards; intricacy.
  2. Noun.  (mathematics) An endofunction whose square is equal to the identity function; a function equal to its inverse.
  3. Noun.  (physiology) The regressive changes in the body occurring with old age.
  4. Noun.  (mathematics, obsolete) A power: the result of raising one number to the power of another.

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This entry was last updated on RefTopia from its source on 3/20/2012.