point group


noun Crystallography.

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.

Nearby words

  1. point defect,
  2. point duty,
  3. point epidemic,
  4. point estimate,
  5. point estimation,
  6. point guard,
  7. point in time,
  8. point lace,
  9. point man,
  10. point mutation

Origin of point group

First recorded in 1900–05

Also called symmetry class.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


British Dictionary definitions for point group

point group

noun

crystallog another term for crystal class
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012