Advertisement

menstruation (n.)

"the period of menstruation," 1680s, from past-participle stem of Late Latin menstruare, from menstruus "monthly" (from mensis "month;" see moon (n.)) + -ation. Old English equivalent was monaðblot "month-blood." Middle English had menstrue (n.), late 14c., from Old French menstrue, from Latin menstruum.

Others are reading

Advertisement
Definitions of menstruation from WordNet

menstruation (n.)
the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause; "a woman does not take the gout unless her menses be stopped"--Hippocrates; "the semen begins to appear in males and to be emitted at the same time of life that the catamenia begin to flow in females"--Aristotle;
the women were sickly and subject to excessive menstruation
Synonyms: menses / menstruum / catamenia / period / flow
From wordnet.princeton.edu