dipyramid

noun di·pyramid \ (ˈ)dī+ \

Definition of dipyramid

:a crystal consisting of two pyramids base to base, the one geometrically a mirror image of the other with respect to the horizontal plane of symmetry
  • dipyramids occur in the tetragonal, hexagonal, and orthorhombic systems and may have corresponding orthorhombic, tetragonal, ditetragonal, hexagonal, or dihexagonal symmetry

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Origin and Etymology of dipyramid

di- + pyramid


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