Omnitruncated simplicial honeycomb
In geometry an omnitruncated simplicial honeycomb or omnitruncated n-simplex honeycomb is an n-dimensional uniform tessellation, based on the symmetry of the A ~ n {\displaystyle {\tilde {A}}_{n}} affine Coxeter group. Each is composed of omnitruncated simplex facets.
Source: Wikipedia — Omnitruncated simplicial honeycomb (CC BY-SA 4.0)