point group: Meaning and Definition of

point' group"

Pronunciation: [key]
— Crystall. Crystall.
  1. a class of crystals determined by a combination of their symmetry elements, all crystals left unchanged by a given set of symmetry elements being placed in the same class. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.