cyclothymia vs cyclic disorder

cyclothymia and cyclic disorder both are nouns.

Word	Noun	Adjective	Verb	Adverb
cyclothymia	Yes	No	No	No
cyclic disorder	Yes	No	No	No

As nouns, cyclothymia and cyclic disorder are synonyms defined as:

cyclothymia and cyclic disorder: a mild bipolar disorder that persists over a long time

Other synonyms of cyclothymia include cyclothymic disorder.

cyclothymia (noun)	cyclic disorder (noun)
a mild bipolar disorder that persists over a long time	a mild bipolar disorder that persists over a long time