FLOW

The motion characteristic of fluids (liquids or gases)

The amount of fluid that flows in a given time

The act of flowing or streaming; continuous progression

Any uninterrupted stream or discharge

Something that resembles a flowing stream in moving continuously

Example: "A stream of people emptied from the terminal"

Dominant course (suggestive of running water) of successive events or ideas

Example: "Two streams of development run through american history"

The monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause

Example: "The women were sickly and subject to excessive menstruation"