noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The invagination of one portion of a tubular anatomical structure (especially intestines or blood vessels) within the next. countable, uncountable
2. 2
   (biology) growth in the surface area of a cell by the deposit of new particles between existing particles in the cell wall wordnet
3. 3
   Absorption. countable, rare, uncountable
4. 4
   the folding in of an outer layer so as to form a pocket in the surface wordnet

Synonyms

All synonyms

infoldingintroversioninvaginationinvaginationretroflexionreversal

Etymology

Borrowed from French intussusception, or directly from Latin intussusceptiō, from intus (“within”) + susceptiō (“susception”).

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.