CATAMENIA
menstruation, menses, menstruum, catamenia, period, flow
(noun) the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause; “the women were sickly and subject to excessive menstruation”; “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
Source: WordNet® 3.1
Etymology
Noun
catamenia (uncountable)
The female period; menstrual discharge.
Synonyms
• See also menstruation.
Source: Wiktionary
Cat`a*me"nia, n. pl. Etym: [NL., fr. Gr. (Med.)
Definition: The monthly courses of women; menstrual discharges; menses.
Source: Webster’s Unabridged Dictionary 1913 Edition