invagination vs introversion

invagination and introversion both are nouns.

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

As nouns, invagination and introversion are synonyms defined as:

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

Other synonyms of invagination include infolding, intussusception.

As nouns, invagination and introversion are synonyms defined as:

invagination and introversion: the condition of being folded inward or sheathed

invagination (noun)	introversion (noun)
the folding in of an outer layer so as to form a pocket in the surface	(psychology) an introverted disposition; concern with one's own thoughts and feelings
the condition of being folded inward or sheathed	the folding in of an outer layer so as to form a pocket in the surface
	the condition of being folded inward or sheathed