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# isometry

[ ahy-**som**-i-tree ]

## 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.

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

isometry

/ ī-sŏm**′**ĭ-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.

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## Word History and Origins

Origin of isometry^{1}

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