The Collaborative International Dictionary
Hemiholohedral
Hemiholohedral \Hem`i*hol`o*he"dral\, a. [Hemi- + holohedral.] (Crystallog.) Presenting hemihedral forms, in which half the sectants have the full number of planes.
Wiktionary
hemiholohedral
a. (context crystallography English) Presenting hemihedral forms in which half the sectants have the full number of planes.