menstrual

adjective

1. of or relating to menstruation or to the menses.
2. Archaic. monthly.

adjective

1. of or relating to menstruation or the menses

adj.late 14c., “pertaining to menses,” also (in astronomy) “monthly,” from Old French menstruel, from Latin menstrualis “monthly,” especially “of or having monthly courses,” from menstruus “of a month, every month, monthly, pertaining to a month,” from mensis “month” (see moon (n.)). adj.

1. Of or relating to menstruation.