Hexadecaexon

The hexadecaexon, or he, also called the trirectified octaexon or trirectified 7-simplex, is a convex uniform polyexon. It consists of 16 birectified heptapeta. 8 birectified heptapeta join at each tetrahedral duoprismatic vertex. As the name suggests, it is the trirectification of the octaexon, the medial stage of truncation between an octaexon and the dual octaexon.

It is also a convex segmentoexon, as birectified heptapeton atop inverted birectified heptapeton.