Definitionen
1.NounA notional column of water from the surface to the bottom in a natural setting, notable for the differences in physical and chemical properties at various depths.
2.NounThe zone in which ascent and descent occur.
3.NounA column alongside a railway track used to replenish a steam engine's water supply.
4.NounThe column of water inside the graduated cylinder of a pressure gauge that measures pressure in inches of water.