Definition of involution in English:
1 Physiology The shrinkage of an organ in old age or when inactive, e.g., of the uterus after childbirth.
- Routine sections revealed normal thymic tissue with fatty involution and no evidence of tumor.
- As gastrulation proceeds, the region of involution spreads laterally and vegetally so that involution involves the vegetal endoderm and so forms a circle around a plug of yolky cells.
- Gradual involution of the Bartholin's glands can occur by the time a woman reaches 30 years of age.
2 Mathematics A function, transformation, or operator that is equal to its inverse, i.e., which gives the identity when applied to itself.
- In his text Traité de géométrie in 1852 Chasles discusses cross ratio, pencils and involutions, all notions which he introduced.
- The book also treats von Staudt's theory of complex elements as defined by real involutions.
- The manner of their joining reflects the involutions of a Mobius strip.
3 formal The process of involving or complicating, or the state of being involved or complicated: periods of artistic involution
More example sentences
- Urban annotation thus becomes a process of involution, an intensive rather than an extensive phenomenon: a potential anti-sprawl.
- And like, a dear friend of mine, a lawyer had said, ‘that we should be involved in the process of evolution and not in the process of involution.’
- In other words, it is a process of involution with Puram Shiva getting involved increasing with each step and descending to the stage where it look as physical.
- Example sentences
- This technique allows for the possibility of improving breast aesthetics in women with involutional (ie, decrease in size of the breasts) changes after childbirth or menopause.
- The more abundant cellular infiltrate in the tumors from the 2 older groups might reflect an involutional process comparable to the involutional changes of the breast parenchyma in postpartum and menopausal women.
- A PET Scan showed globally decreased radiotracer uptake within the brain, bilaterally, consistent with involutional change and prior radiation therapy.
- Example sentences
- Oppressed by such remarks at a time when xenophobia was not an asset, Alfano went through an involutionary process which culminated in the composition of another opera.
- That is, most of what they ascribed to involutionary givens were really evolutionary inheritances.
- This stage of achievement marks the completion of the involutionary path of descent into matter and form.
Definition of involution in:
- British & World English dictionary
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.
Most popular in the US
Most popular in the UK
Most popular in Canada
Most popular in Australia
Most popular in Spain
Most popular in Malaysia
Most popular in India
Most popular in Pakistan