Involution may refer to: Mathematics Involution (mathematics), a function that is its own inverse Involution algebra, a *-algebra: a type of algebraic structure Involute, a construction in the differential geometry of curves Exponentiation (archaic use of the term)
Socioeconomics Neijuan, a Chinese term for an economic concept that describes an excess of competition and social pressure Agricultural Involution, a 1963 study of intensification of production through increased labour inputs
Philosophy Involution (esoterism), several notions of a counterpart to evolution Involution (Meher Baba), the inner path of the human soul to the self as described by Meher Baba Involution (Sri Aurobindo), term in the philosophy of Sri Aurobindo
Other uses Involution (medicine), the shrinking of an organ (such as the uterus after pregnancy) Involution (album), a 1998 music album by Michael Marcus and the Jaki Byard trio
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