We don't have synonyms for menstruations yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are menstruation, menstruating and menstration.
(n) :
The periodic discharging of the menses, the flow of blood and cells from the lining of the uterus in unfertilized females of humans and other primates.
(n) :
An instance of menstruation, the part of each month during which a fertile woman menstruates.
(n) :
The periodic discharging of the menses, the flow of blood and cells from the lining of the uterus in unfertilized females of humans and other primates.
(n) :
An instance of menstruation, the part of each month during which a fertile woman menstruates.