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[hip-som-i-ter] /hɪpˈsɒm ɪ tər/
thermobarometer (def 1).
Origin of hypsometer
1860-65; hypso- + -meter Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for hypsometer
  • Height of short trees can be measured with a graduated rod, but taller trees usually require a hypsometer.
  • Students construct and use a hypsometer to measure several tall structures on the school grounds.
  • The hypsometer bases its measurement on the known boiling-point of a fluid at a specific external pressure.
British Dictionary definitions for hypsometer


an instrument for measuring altitudes by determining the boiling point of water at a given altitude
any instrument used to calculate the heights of trees by triangulation
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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hypsometer in Science
An instrument used to determine land elevation by observing the atmospheric pressure as measured by the change in the boiling point of a liquid, usually water. Liquids boil at progressively lower temperatures as the atmospheric pressure decreases, and since atmospheric pressure decreases with altitude, the temperature at which the liquid boils is an indicator of the atmospheric pressure at that location and hence of the location's altitude.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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