Definition of "cuboctahedron"

There are just two polyhedra that will fulfill these conditions: the cuboctahedron and the icosidodecahedron (Diagram 3.3).

1976, Hugh Kenner, Geodesic Math and how to Use it‎, page 21

In the case of perfect, symmetric L10 cuboctahedra, two of the (001)-surfaces have to be terminated completely with either iron or platinum.

2008, M. E. Gruner, Georg Rollmann, Alfred Hucht, Peter Entel, “Structural and Magnetic Proprties of Transition Metal Nanoparticles from First Principles”, in Rolf Haug, editor, Advances in Solid State Physics 47, page 124

Octahedra are also needed to make the packing of square-sharing cuboctahedra space filling (Fig. 2.4(c)).

2009, Walter Steurer, Sofia Deloudi, Crystallography of Quasicrystals: Concepts, Methods and Structures, page 54

Yang and coworkers have prepared Pt cuboctahedrons and cubes by reducing K2PtCl4 with H2 generated in situ from the hydrolysis of NaBH4 in the presence of tetradecyltrimethylammonium bromide as a surfactant .

2015, Ke Jiang, Antoliy O. Pinchuk, Chapter Two: Noble Metal Nanomaterials: Synthetic Routes, Fundamental Properties, and Promising Applications, Robert E. Camley, Robert L. Stamps (editors), Solid State Physics, Volume 66, Elsevier, page 151