Definitions for "Piezometric surface"
The level at the top of a body of water where some pressure is exerted.
The water level surface that can be defined from the mapping of water level elevations in wells tapping into a confined aquifer.
The level to which water from an aquifer rises in a well or open conduit; it is generally describes the variation in elevation of the groundwater table with in a porous medium
See Potentiometric Surface.