復六方的; 雙六角棱鏡
Dihexagonal \Di`hex*ag"o*nal\, a. [Pref. di- + hexagonal.] (a) Consisting of two hexagonal parts united; thus, a dihexagonal pyramid is composed of two hexagonal pyramids placed base to base. (b) Having twelve similar faces; as, a dihexagonal prism.