| ̷ ̷ ̷ ̷+|hēdrəl adjective
or hemi·he·dric -rik
Etymology: hemi- (I) + -hedron + -al or -ic
1. of a crystal : having half the faces required by complete symmetry — compare holohedral
2. : having the symmetry appropriate to a hemihedral form
• hemi·he·dral·ly -rəlē adverb