Cupid's disease vs sexually transmitted disease

Cupid's disease and sexually transmitted disease both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cupid's disease	Yes	No	No	No
sexually transmitted disease	Yes	No	No	No

As nouns, Cupid's disease and sexually transmitted disease are synonyms defined as:

Cupid's disease and sexually transmitted disease: a communicable infection transmitted by sexual intercourse or genital contact

Other synonyms of Cupid's disease include Cupid's itch, dose, social disease, STD, VD, venereal disease, venereal infection, Venus's curse.

Cupid's disease (noun)	sexually transmitted disease (noun)
a communicable infection transmitted by sexual intercourse or genital contact	a communicable infection transmitted by sexual intercourse or genital contact