Source : Webster's Revised Unabridged Dictionary (1913)

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.

Source : WordNet®

metrorrhagia
     n : bleeding from the uterus that is not due to menstruation;
         usually indicative of disease (as cervical cancer)