/ Dictionary / Index P piezometer: Meaning and Definition of Find definitions for: pi•e•zom•e•ter Pronunciation: (pī"u-zom'i-tur, pē"u-), [key] — n. any of several instruments for measuring the pressure of a fluid or the compressibility of a substance when subjected to such a pressure. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: piezometer (Thesaurus) piezoelectricity piezometry Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language