What does involution mean?
Definition of involution 1a(1) : the act or an instance of enfolding or entangling : involvement. (2) : an involved grammatical construction usually characterized by the insertion of clauses between the subject and predicate. b : complexity, intricacy. 2 : exponentiation. 3a : an inward curvature or penetration.
How do you use involution in a sentence?
1. This lack of involution results in so called calibre persistent submucosal arteries. 2. Involution is the descent of spirit into matter.
What is involution in biology?
involution. [ ĭn′və-lōō′shən ] n. A decrease in size of an organ, as of the uterus following childbirth. The ingrowth and curling inward of a group of cells, as in the formation of a gastrula from a blastula.
What is involution in history?
anthropologist Clifford Geertz called “involution,” found in some agrarian societies when population growth is coupled with a decrease in per capita wealth. Yet another change may be a shift from one pole to the other of a continuum—from religious to secular ways of thinking, for example.
What is desquamation?
: to peel off in the form of scales : scale off desquamated epithelial cells.
What is involution in sociology?
Originally an anthropological term, “involution”, or “neijuan” in Chinese – literally translated to an inward curling – refers to a social concept where population growth does not result in productivity or improved innovation. Today, the term is broadly used to express a feeling of burn out.
Is involution the opposite of evolution?
The term involution refers to different things depending on the writer. In some instances it refers to a process that occurs prior to evolution and gives rise to the cosmos, in others an aspect of evolution, and still others a process that follows the completion of evolution in the human form.
What is involution in microbiology?
Involution is the shrinking or return of an organ to a former size. At a cellular level, involution is characterized by the process of proteolysis of the basement membrane (basal lamina), leading to epithelial regression and apoptosis, with accompanying stromal fibrosis.
What is involution in embryology?
Definition. noun, plural: involutions. (1) (biology) Reverting of the uterus and other genital organs to the pre-pregnant size and state following childbirth. (2) (embryology) The inward movement of an expanding outer layer of cells, thereby forming a dorsal lip in animal gastrulation.
What is social involution?
What is urban involution?
As rural areas lose their “storage capacity”, slums take their place, and urban “involution” replaces rural involution as a sink for surplus labour which can only keep pace with subsistence by ever more heroic feats of self-exploitation and the further competitive subdivision of already densely filled survival niches ( …
Why do I shed skin after a shower?
Dry skin after showering is commonly caused by long, hot showers, harsh ingredients in your shower products, and forgetting to moisturize after getting out of the shower. Use an oil-infused body wash to gently cleanse your skin in the shower without stripping it of nutrients.
What is the medical definition of involution?
Medical Definition of involution. 1a : an inward curvature or penetration. b : the formation of a gastrula by ingrowth of cells formed at the dorsal lip.
What are the characteristics of involution forms?
Ecks was executing a series of caricatures illustrating the involution of Hodgkins’ face back into a crab-apple. (a) Involution forms characterised by alterations of shape (Fig. 90). (b) Involution forms characterised by loss of staining power.
What is an involution in ring theory?
In ring theory, the word involution is customarily taken to mean an antihomomorphism that is its own inverse function. Examples of involutions in common rings:
What is an involution of period 2?
An involution is a projectivity of period 2, that is, a projectivity that interchanges pairs of points. Any projectivity that interchanges two points is an involution. The three pairs of opposite sides of a complete quadrangle meet any line (not through a vertex) in three pairs of an involution.