necrophilia vs necromania

necrophilia and necromania both are nouns.

Word	Noun	Adjective	Verb	Adverb
necrophilia	Yes	No	No	No
necromania	Yes	No	No	No

As nouns, necrophilia and necromania are synonyms defined as:

necrophilia and necromania: an irresistible sexual attraction to dead bodies

Other synonyms of necrophilia include necrophilism.

necrophilia (noun)	necromania (noun)
an irresistible sexual attraction to dead bodies	an irresistible sexual attraction to dead bodies