Source : Webster's Revised Unabridged Dictionary (1913)

Catamenia \Cat`a*me"nia\ (k[a^]t`[.a]*m[=e]"n[i^]*[.a]), n. pl.
   [NL., fr. Gr. ta` katamh`nia.] (Med.)
   The monthly courses of women; menstrual discharges; menses.

Source : WordNet®

catamenia
     n : 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 [syn: {menstruation},
          {menses}, {menstruum}, {period}, {flow}]