tetragonal trisoctahedron

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noun

Geometry. a trisoctahedron the faces of which are quadrilaterals; trapezohedron.

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Words nearby tetragonal trisoctahedron

In the tetragonal system there are three axes at right angles to each other.
The A B C of Mining|Charles A. Bramble
Though closely resembling the tetragonal torbernite in form, it crystallizes in the orthorhombic system and is optically biaxial.
Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 1|Various
Direct nitration gives (principally) m-nitrobenzoic acid, also pseudo-tetragonal with a much shorter principal axis.
Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1|Various
Benzoic acid is pseudo-tetragonal, the principal axis being remarkably long; there is no cleavage at right angles to this axis.
Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1|Various

The density and specific heat of the tetragonal form are greater than those of the yellow.
Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1|Various