intussusception vs invagination

intussusception and invagination both are nouns.

Word	Noun	Adjective	Verb	Adverb
intussusception	Yes	No	No	No
invagination	Yes	No	No	No

As nouns, intussusception and invagination are synonyms defined as:

intussusception and invagination: the folding in of an outer layer so as to form a pocket in the surface

Other synonyms of intussusception include infolding, introversion.

intussusception (noun)	invagination (noun)
(biology) growth in the surface area of a cell by the deposit of new particles between existing particles in the cell wall	the folding in of an outer layer so as to form a pocket in the surface
the folding in of an outer layer so as to form a pocket in the surface	the condition of being folded inward or sheathed