piezometern.
/ˌpiː(ᵻ)ˈzɒmᵻtə/, /ˌpʌɪᵻˈzɒmᵻtə/, U.S. /ˌpi(ə)ˈzɑmədər/ Any of various instruments for measuring the pressure of a liquid or gas, or something connected with pressure.Such instruments include: †(a) one for measuring the compressibility of a liquid (obsolete); (b) one for measuring the pressure of water at any point in a water main, an aquifer, etc.; (c) one for measuring the resistance or sensitivity to pressure of different parts of the surface of the body; (d) one for measuring the pressure of gas in the bore of a gun when it is fired; (e) one for measuring the depth of water by means of the compression of air in a tube.
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the world > matter > physics > mechanics > force > [noun] > pressure > fluid pressure > measuring instruments
air gauge1787
piezometer1820
gas gauge1836
pressure gauge1836
thermometer-gauge1841
kymograph1855
telemanometer1884
tensimeter1907
isoteniscope1910
Pirani gauge1911
Knudsen gauge1918
Knudsen manometer1961
the world > matter > physics > mechanics > fluid mechanics > [noun] > compression > ability > instrument for measuring
piezometer1820
1820 J. Perkins in Philos. Trans. (Royal Soc.) 110 324 Having believed for many years, that water was an elastic fluid, I was induced to..ascertain the fact..by constructing an instrument which I call a piezometer.
1882 Ogilvie's Imperial Dict. (new ed.) Piezometer... 2. An instrument consisting essentially of a vertical tube inserted into a water~main, to show the pressure of the fluid at that point, by the height to which it ascends in the tube of the piezometer.
a1884 E. H. Knight Pract. Dict. Mech. Suppl. 678/2 Piezometer.., an instrument to measure the sense of pressure... The sense of pressure is strongest on the forehead, tongue, and cheek... [Also] An instrument to ascertain the pressure set up in the bore of a gun when a charge of powder is fired.
1904 Johns Hopkins Hosp. Bull. 15 293/2 There are two ways of using the piezometer for the purpose of outlining an abdominal tumor.
1954 H. B. Roe & Q. C. Ayres Engin. Agric. Drainage x. 266 The piezometer is a length of 1/ 4- or 3/ 8-inch iron pipe driven into the soil so that there is no leakage into or out from the sides.
1970 Nature 4 July 11/1 Piezometers were used to measure water pressures in the rock joints.
1993 N.Y. Times 26 Mar. a16/5 A proposal by the Army Corps of Engineers to spend hundreds of thousands of dollars for automatic piezometers—devices that gauge the pressure inside dams.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
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n.1820