  5-simplex   
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  Stericated 5-simplex
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  Steritruncated 5-simplex
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  Stericantellated 5-simplex
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  Stericantitruncated 5-simplex
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  Steriruncitruncated 5-simplex
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  Steriruncicantitruncated 5-simplex (Omnitruncated 5-simplex)
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| Orthogonal projections in A5 and A4 Coxeter planes | |||
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In five-dimensional geometry, a stericated 5-simplex is a convex uniform 5-polytope with fourth-order truncations (sterication) of the regular 5-simplex.
There are six unique sterications of the 5-simplex, including permutations of truncations, cantellations, and runcinations. The simplest stericated 5-simplex is also called an expanded 5-simplex, with the first and last nodes ringed, for being constructible by an expansion operation applied to the regular 5-simplex. The highest form, the steriruncicantitruncated 5-simplex is more simply called an omnitruncated 5-simplex with all of the nodes ringed.