nymphomaniac vs sexual practice

nymphomaniac and sexual practice both are nouns.

Word	Noun	Adjective	Verb	Adverb
nymphomaniac	Yes	Yes	No	No
sexual practice	Yes	No	No	No

nymphomaniac (noun)	sexual practice (noun)
a woman with abnormal sexual desires	activities associated with sexual intercourse

nymphomaniac (adjective)	sexual practice (adjective)
(used of women) affected with excessive sexual desire