Octagonal octagoltriate (EntityTopic, 13)

From Hi.gher. Space

The octagonal octagoltriate is a powertope formed by taking the octagon of the octagon. It is therefore the convex hull of two duoprisms of regular octagons of side 1 and 1+√2, oriented in opposite axes. It is also the simplest non-trivial ditetrate and can also be called the octagonal ditetrate.

Notable Tetrashapes
Regular: pyrochoronaerochorongeochoronxylochoronhydrochoroncosmochoron
Powertopes: triangular octagoltriatesquare octagoltriatehexagonal octagoltriateoctagonal octagoltriate
Circular: glomecubinderduocylinderspherindersphonecylindronediconeconinder
Torii: tigertorispherespheritorustorinderditorus