involution

Example Sentences

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This process is called thymic involution, and it reduces the body's ability to produce new T cells.

From Science Daily • Dec. 29, 2025

In anthropology, involution is used to describe a kind of change without progress.

From The Wall Street Journal • Oct. 19, 2025

“I thought by opening a stall I could escape the involution of looking for work,” one vendor wrote on Xiaohongshu.

From Los Angeles Times • Jun. 27, 2023

"If this can't be halted, the trends in place could lead to a progressive and unsustainable involution of the human capital of most of southern Italy."

From Reuters • Jan. 25, 2023

Hence— A conic determines on every line in its plane an involution, in which those points are conjugate which are also conjugate with regard to the conic.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6 "Geodesy" to "Geometry" by Various