See Also: disphenoid(dictionary)
disphenoid (iou)
disphenoid noun. L19.
[from DI-2 + SPHENOID.]
Crystallography. A solid formed by eight similar scalene triangles, a tetragonal scalenohedron. Also, a crystal form like a double wedge formed by two pairs of scalene or isosceles triangles and having two planes of symmetry.
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