Hemihedral - Definition - Law Dictionary Home Dictionary Definition hemihedral

Definition :

Having half of the similar parts of a crystals instead of all consisting of half the planes which full symmetry would require as when a cube has planes only on half of its eight solid angles or one plane out of a pair on each of its edges or as in the case of a tetrahedron which is hemihedral to an octahedron it being contained under four of the planes of an octahedron