Polar point group

In the context of crystallography and group theory, a **polar point group** refers to a specific category of symmetry groups associated with three-dimensional objects, where there is a distinguished direction or axis. This type of symmetry group is associated with systems that have a unique spatial orientation, allowing for distinctions between positive and negative versions of various properties, such as polarization or chirality. Polar point groups typically possess a non-centrosymmetric arrangement, meaning they lack a center of symmetry.