Pronunciation: (ī-som'i-trē), [key]
1. equality of measure.
2. Biol.equal growth rates in two parts of a developing organism.
3. Geog.equality with respect to height above sea level.
4. Math.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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.