noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The process where an anatomical part invaginates upon itself or into another structure. countable, uncountable
2. 2
   the folding in of an outer layer so as to form a pocket in the surface wordnet
3. 3
   One of the methods by which the various germ layers of the ovum are differentiated. countable, uncountable
4. 4
   the condition of being folded inward or sheathed wordnet

Synonyms

All synonyms

infoldingintroversionintussusceptionretroflexionreversalreversion

Etymology

From invaginate + -ion.

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