isometry

Equality of measure.

Equality of elevation above sea level.

A function between metric spaces which preserves distances, such as a rotation or translation in a plane.

A proportional change in the size of a part or parts of an organism as the organism grows.

A function between metric spaces (or on a single metric space) having the property that the distance between two images is equal to the distance between their pre-images.

equality of elevation above sea level

equality of measure (e.g., equality of height above sea level or equality of loudness etc.)

the growth rates in different parts of a growing organism are the same

a one-to-one mapping of one metric space into another metric space that preserves the distances between each pair of points