manic-depressive psychosis vs bipolar disorder

manic-depressive psychosis and bipolar disorder both are nouns.

Word	Noun	Adjective	Verb	Adverb
manic-depressive psychosis	Yes	No	No	No
bipolar disorder	Yes	No	No	No

As nouns, manic-depressive psychosis and bipolar disorder are synonyms defined as:

manic-depressive psychosis and bipolar disorder: a mental disorder characterized by episodes of mania and depression

Other synonyms of manic-depressive psychosis include manic depression, manic depressive illness.

manic-depressive psychosis (noun)	bipolar disorder (noun)
a mental disorder characterized by episodes of mania and depression	a mental disorder characterized by episodes of mania and depression