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isometry

[ ahy-som-i-tree ]
/ aɪˈsɒm ɪ tri /
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noun
equality of measure.
Biology. equal growth rates in two parts of a developing organism.
Geography. equality with respect to height above sea level.
Mathematics. a function from one metric space onto a second metric space having the property that the distance between two points in the first space is equal to the distance between the image points in the second space.
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Origin of isometry

From the Greek word isometría, dating back to 1940–45. See iso-, -metry
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

British Dictionary definitions for isometry

isometry
/ (aɪˈsɒmɪtrɪ) /

noun
maths rigid motion of a plane or space such that the distance between any two points before and after this motion is unaltered
equality of height above sea level
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

Scientific definitions for isometry

isometry
[ ī-sŏmĭ-trē ]

Equality of measure.
Equality of elevation above sea level.
A function between two metric spaces (such as two coordinate systems) which preserves distances. A rotation or translation in a plane is an isometry, since the distances between two points on the plane remain the same after the rotation or translation.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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