SINCE 1828
isometry
noun
isom·e·try
| \ ī-ˈsä-mə-trē
\
\
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
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