retroversion vs reversion

retroversion and reversion both are nouns.

Word	Noun	Adjective	Verb	Adverb
retroversion	Yes	No	No	No
reversion	Yes	No	No	No

As nouns, retroversion and reversion are synonyms defined as:

Other synonyms of retroversion include regress, regression, retrogression.

retroversion (noun)	reversion (noun)
returning to a former state	a failure to maintain a higher state
translation back into the original language	turning in the opposite direction
a turning or tilting backward of an organ or body part	returning to a former state
	(genetics) a return to a normal phenotype (usually resulting from a second mutation)
	a reappearance of an earlier characteristic
	(law) an interest in an estate that reverts to the grantor (or his heirs) at the end of some period (e.g., the death of the grantee)