ELI5: Explain Like I'm 5

Archimedean solid

An Archimedean solid is a 3-dimensional shape where each of its flat faces are made of the exact same shape, and each corner where the flat faces meet is in the exact same spot. An example of an Archimedean solid is a cube, which is made of 6 faces, each of which is a square. Each of the 8 corners of the cube has 3 square faces touching it.