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plagiohedral

adjective pla·gi·o·he·dral \ ¦plājēō¦hēdrəl \
variants: or plagihedral \-jə¦-\

Definition of plagiohedral

: having an oblique spiral arrangement of faces : gyroidal
  • plagiohedral quartz crystals
; specifically : being a group of the isometric system characterized by 13 axes of symmetry but no center or planes

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Origin and Etymology of plagiohedral

plagi- + -hedral

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