[pahy-uh-zom-i-ter, pee-uh-]
  1. any of several instruments for measuring the pressure of a fluid or the compressibility of a substance when subjected to such a pressure.

Origin of piezometer

1810–20; < Greek piéz(ein) to press + -o- + -meter
Related formspi·e·zo·met·ric [pahy-ee-zuh-me-trik, pee-ey-] /paɪˌi zəˈmɛ trɪk, piˌeɪ-/, pi·e·zo·met·ri·cal, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for piezometric


  1. any instrument for the measurement of pressure (piezometry), esp very high pressure, or for measuring the compressibility of materials under pressure
Derived Formspiezometric (paɪˌiːzəʊˈmɛtrɪk), adjectivepiezometrically, adverb
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

piezometric in Science


  1. An instrument for measuring fluid pressure, such as the pressure of water or gas in a pipe.
  2. An instrument for measuring the compressibility of a material, especially in terms of the change in volume it undergoes when subjected to hydrostatic pressure.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.