hexacle
A circumscribed hexagram.
Regular stellate polyhedra are the three- dimensional analogue to the stars (pentacle, hexacle, etc.) in the plane (Figure 32A and B).
Where it comes from
First used in the 20th century; based upon the word pentacle and the most recent definition thereof ("a circumscribed pentagram"), applying the same word format to the word "hexagram".
Adapted from the Wiktionary entry hexacle (CC BY-SA 4.0).