English Dictionary

involution

/ɪnvəˈluːʃən/

noun

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.

The involution of their relationship only deepened their entanglement.

意味（1）

Entanglement; a spiralling inwards; intricacy.

[…] usually his attention was diverted from her feet by her shrieks of laughter and the astounding involutions of her huge brown-yellow frame.

意味（2）

A complicated grammatical construction.

Walter Pater’s essay on Style is honeycombed with involutions and preciosity.

意味（3）

(mathematics) An endofunction whose square is equal to the identity function; a function equal to its inverse.

Involutions have the property that they are their own inverses.

意味（4）

(medicine) The shrinking of an organ (such as the uterus) to a former size.

意味（5）

(physiology) The regressive changes in the body occurring with old age.

意味（6）

(mathematics, obsolete) A power: the result of raising one number to the power of another.

意味（7）

(economics, social sciences, of a society or nation) A cessation of development or progress despite intense inner competition.

意味（8）

(neologism, slang) A state of increased competition for limited resources, requiring great effort to stay ahead.