planimeter

[pluh-nim-i-ter]
noun
an instrument for measuring mechanically the area of plane figures.

Origin:
1855–60; plani- + -meter

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To planimeter
Collins
World English Dictionary
planimeter (plæˈnɪmɪtə)
 
n
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 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Encyclopedia Britannica
Encyclopedia

planimeter

mathematical instrument for directly measuring the area bounded by an irregular curve, and hence the value of a definite integral.

Learn more about planimeter with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source
Example sentences
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.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature