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.