enantiomorphism

from The Century Dictionary.

• noun The property or condition of being enantiomorphous. Specifically
• noun In crystallography, the relation of similarity of form between crystals which are not superposable, so that one of two crystals differs from the other as it differs from its own image in a mirror. See enantiomorphous.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun chemistry The relationship exhibited by a pair of enantiomorphs

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun the relation of opposition between crystals or molecules that are reflections of one another