Octahemioctahedron

The octahemioctahedron, or oho, is a quasiregular polyhedron and one of 10 uniform hemipolyhedra. It consists of 8 equilateral triangles and 4 "hemi" hexagons passing through its center, with two of each joining at a vertex. Its triangular faces, as well as its hemi hexagonal faces, are parallel to those of an octahedron: hence the name.

Unlike the other quasiregular hemihedra, the octahemioctahedron is orientable.

The visible portion of this solid resembles a cuboctahedron with six square pyramids carved out. In fact the triangular faces are the same ones as from the cuboctahedron, while the hexagons are those of the cuboctahedron's equatorial planes.

Related polyhedra
The icosidisicosahedron is a uniform polyhedron compound composed of 5 octahemioctahedra.