magic cube

Noun

 * 1)  By analogy with magic square, an n-by-n-by-n arrangement of n&sup3; numbers such that the numbers in each row, in all columns (horizontal and vertical) and in all main diagonals (of which there are 6*n+4) each have the same sum.

Etymology 2
, the original name (according to Singmaster's Notes on Rubik's 'Magic Cube' and the Wikipedia page) for what later became known in Western markets as Rubik's cube.

Noun

 * 1) A Rubik's cube.