Flow of blood from the uterus; occurs at roughly monthly intervals during a woman's reproductive years; SYN. menstrual blood, menstrual flow.
Monats-, Regelblutung, bei der Frau die Menstruation. Hyper-M., zu starke, Hypo-M., zu schwache, Oligo-M., zu seltene, Poly-M., zu häufige Regelblutung; Eu-M., normale, Dys-M., schmerzhafte Regelblutung.