noun
- any of several instruments for measuring the pressure of a fluid or the compressibility of a substance when subjected to such a pressure.
noun
- any instrument for the measurement of pressure (piezometry), esp very high pressure, or for measuring the compressibility of materials under pressure
- An instrument for measuring fluid pressure, such as the pressure of water or gas in a pipe.
- An instrument for measuring the compressibility of a material, especially in terms of the change in volume it undergoes when subjected to hydrostatic pressure.