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[pluh-nim-i-ter] /pləˈnɪm ɪ tər/
an instrument for measuring mechanically the area of plane figures.
Origin of planimeter
1855-60; plani- + -meter Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for planimeter
  • The value indicated on the planimeter is converted to land area by using an appropriate conversion factor related to map scale.
  • Field measurements were made from aerial enlargements with a planimeter.
  • Ability to compute acreages using a calculator, planimeter, or computer.
  • Integration was done with a calibrated polar planimeter.
  • Surface integration is performed by using a planimeter and adding the areas.
  • Using a dot grid is a simple way to measure the drainage area, however there are other tools, such as a planimeter or digitizer.
British Dictionary definitions for planimeter


a mechanical integrating instrument for measuring the area of an irregular plane figure, such as the area under a curve, by moving a point attached to an arm around the perimeter of the figure
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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