truncated cuboctahedron

Etymology
From +, referring to a partial construction (the resultant figure needs further distortion to make the faces regular).

Noun

 * 1)  An Archimedean solid that is isogonal and has twenty-six regular faces (twelve square, eight hexagonal and six octagonal); a great rhombicuboctahedron.

Usage notes
The term is considered by some to be "improper" or misleading, because truncation of an octahedron yields a form with irregular faces that must be further distorted.

Translations

 * Italian: cubottaedro troncato, grande rombicubottaedro