Usually indicative of disease (as cervical cancer)

• Bleeding from the uterus that is not due to menstruation

Wiktionary Word definitions in Wiktionary
n. (context pathology English) uterine bleeding, other than the menses

WordNet Word definitions in WordNet
n. bleeding from the uterus that is not due to menstruation; usually indicative of disease (as cervical cancer)

Wikipedia Word definitions in Wikipedia
Metrorrhagia (metro = womb, -rrhagia = excessive flow) is uterine bleeding at irregular intervals, particularly between the expected menstrual periods . In some women, menstrual spotting between periods occurs as a normal and harmless part of ovulation ...

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Metrorrhagia \Met`ror*rha"gi*a\, n. [NL., fr. Gr. ? womb + ? to break.] (Med.) Profuse bleeding from the womb, esp. such as does not occur at the menstrual period.