a tube for measuring the static pressure of a fluid in motion, so placed in the fluid as not to be affected by the pressure changes caused by the motion of the fluid.
Origin of static tube
First recorded in 1930–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
an open-ended tube used to measure the static pressure at a point in a moving fluid and positioned in such a way that it is unaffected by the fluid's motion
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