themonthlydischargeof bloodfromtheuterusofnonpregnantwomenfrompubertytomenopause; "awomandoesnottakethegoutunlesshermensesbestopped"--Hippocrates; "thesemenbeginstoappear inmalesandto beemittedat the same timeoflifethatthecatameniabegintoflowinfemales"--Aristotle