reversion vs genetic science

reversion and genetic science both are nouns.

Word	Noun	Adjective	Verb	Adverb
reversion	Yes	No	No	No
genetic science	Yes	No	No	No

reversion (noun)	genetic science (noun)
a failure to maintain a higher state	the branch of biology that studies heredity and variation in organisms
turning in the opposite direction
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)