symmetry element
noun Crystallography.
any of four points, lines, or planes of a crystal: a center of symmetry, a reflection plane, a rotation axis, or a rotation-inversion axis.
Words nearby symmetry element
symmetric matrix,
symmetrical,
symmetrical gangrene,
symmetrize,
symmetry,
symmetry element,
symmetry plane,
symonds,
symons,
sympath-,
sympathectomy