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.
Also called
symmetry class.
Origin of point group
First recorded in 1900–05
Words nearby point group
point defect,
point duty,
point epidemic,
point estimate,
point estimation,
point group,
point guard,
point in time,
point lace,
point man,
point mutation