One of the mysteries of the English language finally explained.
An instrument for measuring the pressure of a liquid or gas, or something related to pressure (such as the compressibility of liquid). Piezometers are often placed in boreholes to monitor the pressure or depth of groundwater.
- ‘The ground investigation included rotary coring, self-boring expansion pressuremeters, self-boring load cells, self-boring permeaters, vibrating-wire piezometers, and the instrumented drilling tests.’
- ‘Groundwater at the site was measured by installing a piezometer.’
- ‘Two piezometers were installed to measure groundwater levels.’
- ‘The instrumentation includes various gauges embedded in the dam structure or installed around the dam body, such as uplift pressure cells, thermometers, piezometers, stress and strain meters, and coordimeters.’
- ‘Horizontal movement is measured by inclinometers, and multiple-point vibrating-wire piezometers provide information on groundwater pressure.’
Early 19th century: from Greek piezein ‘press, squeeze’ + -meter.
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