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point group

noun

, Crystallography.
  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.

point group

noun

  1. See crystal class
    crystallog another term for crystal class

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Word History and Origins

Origin of point group1

First recorded in 1900–05

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point estimationpoint guard

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