social disease vs sexually transmitted disease

social disease and sexually transmitted disease both are nouns.

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

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

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

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

social 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