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venturi tube

or Venturi tube

[ven-too r-ee] /vɛnˈtʊər i/
a device for measuring the flow of a fluid, consisting of a tube with a short, narrow center section and widened, tapered ends, so that a fluid flowing through the center section at a higher velocity than through an end section creates a pressure differential that is a measure of the flow of the fluid.
Origin of venturi tube
named after G. B. Venturi (1746-1822), Italian physicist whose work led to its invention Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for venturi-tube

Venturi tube

(physics) a device for measuring fluid flow, consisting of a tube so constricted that the pressure differential produced by fluid flowing through the constriction gives a measure of the rate of flow
Also called venturi. a tube with a constriction used to reduce or control fluid flow, as one in the air inlet of a carburettor
Word Origin
C19: named after G. B. Venturi (1746–1822), Italian physicist
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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