Lattice complex
From Online Dictionary of Crystallography
Gittercomplex (Ge).
Definition
A lattice complex is the set of all point configurations that may be generated within one type of Wyckoff set.
The name lattice complex comes from the fact that an assemblage of points that are equivalent with respect to a group of symmetry operations including lattice tranlations can be visualized as a set of equivalent lattices.
See also
Chapter 14 of International Tables of Crystallography, Section A