hemiholohedral

Century Dictionary and Cyclopedia

1. In crystallography, having half the whole number of planes in all the octants: sometimes said of the parallel hemihedral forms of the isometric system. See hemihedrism.

Wiktionary

1. adj. crystallography Presenting hemihedral forms in which half the sectants have the full number of planes.

GNU Webster's 1913

1. adj. (Crystallog.) Presenting hemihedral forms, in which half the sectants have the full number of planes.