D defs.my
Entry 1 sense Webster, 1913

Plagihedral

· Pla·gi·he·dral · IPA
01 a. Having an oblique spiral arrangement of planes, as levogyrate and dextrogyrate crystals.
  1. 1.
    Having an oblique spiral arrangement of planes, as levogyrate and dextrogyrate crystals.(Crystallog.)