black lung disease vs black lung

black lung disease and black lung both are nouns.

Word	Noun	Adjective	Verb	Adverb
black lung disease	Yes	No	No	No
black lung	Yes	No	No	No

As nouns, black lung disease and black lung are synonyms defined as:

black lung disease and black lung: lung disease caused by inhaling coal dust

Other synonyms of black lung disease include anthracosis, coal miner's lung.

black lung disease (noun)	black lung (noun)
lung disease caused by inhaling coal dust	lung disease caused by inhaling coal dust