isom·​e·​try | \ ī-ˈsä-mə-trē How to pronounce isometry (audio) \
plural isometries

Definition of isometry

: a mapping of a metric space onto another or onto itself so that the distance between any two points in the original space is the same as the distance between their images in the second space rotation and translation are isometries of the plane

Examples of isometry in a Sentence

Recent Examples on the Web That’s because symmetries are isometries, which preserve the size and shape of the object. Quanta Magazine, "Symmetry, Algebra and the Monster," 17 Aug. 2017 Similarly, the properties of isometries guarantee that line segments get mapped to line segments. Quanta Magazine, "Symmetry, Algebra and the Monster," 17 Aug. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'isometry.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of isometry

1881, in the meaning defined above

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Time Traveler for isometry

Time Traveler

The first known use of isometry was in 1881

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Statistics for isometry

Cite this Entry

“Isometry.” Dictionary, Merriam-Webster, Accessed 26 Feb. 2021.

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