heart block vs Stokes-Adams syndrome

heart block and Stokes-Adams syndrome both are nouns.

Word	Noun	Adjective	Verb	Adverb
heart block	Yes	No	No	No
Stokes-Adams syndrome	Yes	No	No	No

As nouns, heart block and Stokes-Adams syndrome are synonyms defined as:

heart block and Stokes-Adams syndrome: recurrent sudden attacks of unconsciousness caused by impaired conduction of the impulse that regulates the heartbeat

Other synonyms of heart block include Adams-Stokes syndrome, atrioventricular block.

heart block (noun)	Stokes-Adams syndrome (noun)
recurrent sudden attacks of unconsciousness caused by impaired conduction of the impulse that regulates the heartbeat	recurrent sudden attacks of unconsciousness caused by impaired conduction of the impulse that regulates the heartbeat