+D4d is a specific [Point Group](/wiki/point-group) in mathematics and crystallography. It embodies a distinct set of [Symmetry](/wiki/symmetry) operations, defining how objects or structures remain invariant under certain transformations.
+## See also
+- [Group Theory](/wiki/group-theory)
+- [Crystallography](/wiki/crystallography)
+- [Space Group](/wiki/space-group)
... 1 more lines