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Pitot tube

[pee-toh, pee-toh]
noun
  1. (often lowercase) an instrument for measuring fluid velocity, consisting of a narrow tube, one end of which is open and faces upstream, the other end being connected to a manometer.
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Origin of Pitot tube

1880–85; named after Henri Pitot (1695–1771), French physicist, who invented it
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for pitot tube

Pitot tube

noun
  1. a small tube placed in a fluid with its open end upstream and the other end connected to a manometer. It measures the total pressure of the fluid
  2. short for Pitot-static tube, esp one fitted to an aircraft
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Word Origin

C18: named after its inventor, Henri Pitot (1695–1771), French 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