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Oc`ta*he"dral (?), a. [See Octahedron.]

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.


© Webster 1913.

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