The word "involution" is correct and usable in written English.
It has different meanings and can be used as a noun or a verb. As a noun, it refers to a mathematical process in which a quantity decreases in magnitude or complexity. An example sentence could be: "The involution of the numbers had the team scratching their heads." As a verb, involution means to be involved in complex and detailed processes. An example sentence could be: "The team involuted in a long discussion about the findings."
We stumble upon "involution" in one story, "involutional" in the next, and later a story titled "Involution".
During the involution, or shrinking, of the thymus the cortex becomes thin.
The process of involution is never complete, and the bits of thymus tissue that remain are probably sufficient to maintain its function.
Localized cell death, occurring at precise moments during normal ontogeny, explains phenomena as varied as the fashioning of the digits or the involution of phylogenetic vestiges.
During this process, called involution, the excess muscle mass of the pregnant uterus is reduced, and the lining of the uterus (endometrium) is reestablished, usually by the third week.
The cryptic brevity, obscurity, and involution of the Hermetics were forced upon them, however, by the intensive control over literature exerted by the Fascist regime in the interwar period.
The second layer, the arachnoid mater, covers the brain and pia mater but does not follow the contour of the involutions of the brain.
In the statue of St. Longinus in St. Peter's in Rome, Bernini created the characteristic formula of Baroque sculpture by throwing the draperies into a violent turmoil, the complicated and broken involutions of which are not rationally explained by the figure's real bodily movement but seem paroxysmally informed by the miracle itself.
It is impossible to state just how in love I am with my own body, the white snows of me, the sudden involutions and crevasses of me, my muscles tensed or slack in anger or fear.
Coleridge, in thrall to Kant and Schiller, expatiated on the relations between sensation, thought, and feeling; Hazlitt, a disciple of Hume, stressed the mental involutions that drive behavior.
You had to run in order to get… It is impossible to state just how in love I am with my own body, the white snows of me, the sudden involutions and crevasses….
