icositetrachoron

Etymology
, from  and.

Noun

 * 1)  A four-dimensional object with no regular three-dimensional analogue, constructed out of twenty-four octahedra.

Translations

 * Esperanto: dudekkvarĉelo
 * Finnish: 24-solu
 * Japanese: 正二十四胞体
 * Polish:
 * Russian: двадцатичетырёхъячейник