[1] : The Collaborative International Dictionary of English v.0.48

menses \men"ses\, n. pl. l. mensis month, pl. menses months,
   and the monthly courses of women. cf. month. med.
   the catamenial or menstrual discharge, a periodic flow of
   blood or bloody fluid from the uterus or female generative
   organs.
   1913 webster
see also:
month 

[2] : WordNet (r) 2.0

menses
     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,
          menstruum, catamenia, period, flow
see also:
menstruation menstruum catamenia period flow 

Menses >> M Words
Menses, definition of term: Menses
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