hypermenorrhea vs menorrhagia

hypermenorrhea and menorrhagia both are nouns.

Word	Noun	Adjective	Verb	Adverb
hypermenorrhea	Yes	No	No	No
menorrhagia	Yes	No	No	No

As nouns, hypermenorrhea and menorrhagia are synonyms defined as:

hypermenorrhea and menorrhagia: abnormally heavy or prolonged menstruation; can be a symptom of uterine tumors and can lead to anemia if prolonged

hypermenorrhea (noun)	menorrhagia (noun)
abnormally heavy or prolonged menstruation; can be a symptom of uterine tumors and can lead to anemia if prolonged	abnormally heavy or prolonged menstruation; can be a symptom of uterine tumors and can lead to anemia if prolonged