the periodic flow of blood and sloughed-off tissue from the uterus, discharged through the genital tract: it normally occurs about every four weeks in a woman who is not pregnant, from menarche to menopause
Origin of mensesL, plural of mensis, month: see moon
plural noun(used with a sing. or pl. verb)
- See menstruation.
- The material, consisting of blood and cellular debris from the uterus, discharged during menstruation.
Origin of mensesLatin mēnsēs, pl. of mēnsis, month; see mē-2 in Indo-European roots.