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Bourdon-tube gauge

[boo r-dn toob, -tyoob, bawr-, bohr-, boo r-dawn-] /ˈbʊər dn ˌtub, -ˌtyub, ˈbɔr-, ˈboʊr-, bʊərˈdɔ̃-/
noun, Chemistry
1.
an instrument for measuring the pressure of gases or liquids, consisting of a semicircular or coiled, flexible metal tube attached to a gauge that records the degree to which the tube is straightened by the pressure of the gas or liquid inside.
Origin
1900-1905
1900-05; named after E. Bourdon, 19th-century French inventor
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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