Acronym  dissit 
Name 
disnub tetrahedron, compound of 4 oct 
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Circumradius  1/sqrt(2) = 0.707107 
Inradius  1/sqrt(6) = 0.408248 
Vertex figure  [3^{4}] 
Dihedral angles
(at margins) 

Confer  
External links 
This compound has rotational freedom. Starting at φ = 0° with a completely coincident overlay of 4 octahedra, rotating 1 octahedron each, thought of as 3fold antiprisms, around a tetrahedral subset of trigonal axes, and thereby passing at φ = 60° at sno.
This is the hemiversion of doso.
For an intermediate state of φ the lateral triangles become coplanar, and thus can be considered as (rotated) 2trianglecompounds. That special case is called hidsit (hexagrammattic disnub tetrahedron). By coincidence, hidsit is nothing but se with 1 oct removed. (Jonathan further uses idsit (inner ...) for smaller values of φ, resp. odsit (outer ...) for larger values.)
24  2 2  3 1  1 ++++ 2  24 *  1 1  1 2  * 24  2 0  1 ++++ 3  1 2  24 *  1 3  3 0  * 8  1 ++++ ♦ 6  6 6  6 2  4
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