a half-sheet of a writing paper.

relating to or depending on, the seasons.

of or relating to the menstrual flow or a menstrual period; menstrual.

of or having the menses; menstrual.

the periodic flow of blood and sloughed-off tissue from the uterus, discharged through the genital tract, which normally occurs about every four weeks in a woman who is not pregnant, from menarche to menopause; menses.

a girl or woman inher menses period.