Intussusception
WordNet
noun
(1) (biology) growth in the surface area of a cell by the deposit of new particles between existing particles in the cell wall
(2) The folding in of an outer layer so as to form a pocket in the surface
"The invagination of the blastula"
WiktionaryText
Etymology
From French intussusception, or directly from Latin intussusceptio, from intus ‘within’ + susceptio ‘susception’.
Noun
- Absorption.
- The invagination of one portion of a tubular anatomical structure (especially intestines or blood vessels) within the next.