One of the mysteries of the English language finally explained.
An instrument for measuring the pressure acting on a column of fluid, especially one with a U-shaped tube of liquid in which a difference in the pressures acting in the two arms of the tube causes the liquid to reach different heights in the two arms.
- ‘First invented in the seventeenth century, manometers are used to measure the pressure of gases.’
- ‘The contamination appeared to be mostly contained in a first-floor science classroom, where the silvery metal leaked from a manometer, a U-shaped glass device used to measure air pressure, Dieringer said.’
- ‘One of the earliest measuring tools was a liquid-filled tube known as a manometer.’
- ‘The desktop manometer was developed to provide engineers immediate access to pressure sensor data.’
- ‘The combination of an inclined and a vertical manometer is very useful in air movement determination.’
Mid 18th century: from French manomètre, from Greek manos ‘thin’ + -mètre ‘(instrument) measuring’.
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