(n)stream, flowsomething that resembles a flowing stream in moving continuously“a stream of people emptied from the terminal”, “the museum had planned carefully for the flow of visitors”
(n)stream, flow, currentdominant course (suggestive of running water) of successive events or ideas“two streams of development run through American history”, “stream of consciousness”, “the flow of thought”, “the current of history”
(n)menstruation, menses, menstruum, catamenia, period, flowthe monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause“the women were sickly and subject to excessive menstruation”, “a woman does not take the gout unless her menses be stopped” (Hippocrates), “the semen begins to appear in males and to be emitted at the same time of life that the catamenia begin to flow in females” (Aristotle)