involution italiaksi - Sanakirja.org (englanti-italia)

Entanglement; a spiralling inwards; intricacy.
A complicated grammatical construction.
(mathematics) An endofunction whose square is equal to the identity function; a function equal to its inverse.
(medicine) The shrinking of an organ (such as the uterus) to a former size.
(physiology) The regressive changes in the body occurring with old age.
(mathematics, obsolete) A power: the result of raising one number to the power of another.
(economics, social sciences, of a society or nation) A cessation of development or progress involving intense inner competition.
(neologism) A state of increased competition for limited resources, requiring great effort to stay ahead.
(biology) The migration of a cell layer inward, sliding over an outer layer of cells. It occurs at gastrulation during embryogenesis.

1968: ‘Gomez,’ said the mortician, ‘is an expert only on the involutions of his own rectum.’ — Anthony Burgess, Enderby Outside
Involutions have the property that they are their own inverses.

Monikko

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