Dictionary > Involution

Involution

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.
(3) (physiology) The progressive, retrograding or degenerating changes in a senescing (aging) body; catagenesis.
(4) (medicine) Shrinking of an organ.
(5) (general) Turning or rolling inward; enfolding.
Supplement
Word origin: Latin involutio, from volvere (to roll).
Related form(s): involute
Related term(s):


You will also like...

Still Water Animals
Still Water Animals

Animals living in aquatic habitats have diversified and evolved through time. They eventually occupy ecological niches a..

Transpiration
Water in Plants

The movement of molecules (specifically, water and solutes) is vital to the understanding of plant processes. This tuto..

Ecological Research Measuring & Analysis
Ecological Research: Measuring & Analysis

This lesson is about the methods used for ecological research, such as quadrat and transect sampling, canopy fogging, an..

genes controlling growth and development
Control of Growth & Development

Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..

Body temperature regulation by the hypothalamus
Temperature Regulation in Animals

This tutorial elucidates body temperature regulation. Know the details here to learn how the body sets the body temperat..

Lentic community
Freshwater Communities & Lentic Waters

Lentic or still water communities can vary greatly in appearance -- from a small temporary puddle to a large lake. The s..

Related Articles...

No related articles found

See all Related Topics