isometry (Noun) — (growth) the growth rates in different parts of a growing organism are the same.
isometry (Noun) — A one-to-one mapping of one metric space into another metric space that preserves the distances between each pair of points. ex. "the isometries of the cube"
isometry (Noun) — Equality of elevation above sea level.
isometry (Noun) — Equality of measure (e.g., equality of height above sea level or equality of loudness etc.).