What is the medical term meaning excessive menstrual flow over a longer duration than normal?

The correct medical term is menorrhagia.
Menorrhagia means excessive bleeding during menstruation.
Excessive menstrual bleeding is menorhagia.

Irregular menstrual bleeding is metrorhagia.

Irregular excessive menstrual bleeding is menometrorhagia.
Menorrhagia is excessive uterine bleeding during the menses.
Menorrhagia