OCTAHEDRAL

Etymology

Adjective

octahedral (not comparable)

Having eight plane surfaces; thus, in the shape or form of an octahedron.

Of, or pertaining to octahedra.

Source: Wiktionary

Oc`ta*he"dral, a. Etym: [See Octahedron.]

Definition: Having eight faces or sides; of, pertaining to, or formed in, octahedrons; as, octahedral cleavage. Octahedral borax (Chem.), borax obtained from a saturated solution in octahedral crystals, which contain five molecules of water of crystallization; distinguished from common or prismatic borax.

– Octahedral iron ore (Min.), magnetite.

Source: Webster’s Unabridged Dictionary 1913 Edition