In six-dimensional Euclidean geometry, the cyclotruncated 6-simplex honeycomb is a space-filling tessellation (or honeycomb).
The tessellation fills space by 6-simplex, truncated 6-simplex, bitruncated 6-simplex, and tritruncated 6-simplex facets.
These facet types occur in proportions of 2:2:2:1 respectively in the whole honeycomb.
It can be constructed by seven sets of parallel hyperplanes that divide space.
3 Regular and uniform honeycombs in 6-space: