sexually transmitted disease vs social disease

sexually transmitted disease and social disease both are nouns.

Word	Noun	Adjective	Verb	Adverb
sexually transmitted disease	Yes	No	No	No
social disease	Yes	No	No	No

As nouns, sexually transmitted disease and social disease are synonyms defined as:

sexually transmitted disease and social disease: a communicable infection transmitted by sexual intercourse or genital contact

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

sexually transmitted disease (noun)	social disease (noun)
a communicable infection transmitted by sexual intercourse or genital contact	a communicable infection transmitted by sexual intercourse or genital contact