Noah Webster
Perihexahedral
PERIHEXAHE'DRAL, adjective [Gr.] Designating a crystal whose primitive form is a four sided prism, and in the secondary form is converted into a prism of six sides.
PERIHEXAHE'DRAL, adjective [Gr.] Designating a crystal whose primitive form is a four sided prism, and in the secondary form is converted into a prism of six sides.