Definition of Drall. Meaning of Drall. Synonyms of Drall
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Definition of Drall
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Hemihedrally Hemihedral Hem`i*he"dral, a. [Hemi- + Gr. ? seat, base, fr. ?
to sit.] (Crystallog.)
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. -- Hem`i*he"dral*ly, adv.
Tetartohedrally Tetartohedral Te*tar`to*he"dral, a. [Gr. ? fourth + ? base.]
(Crystallog.)
Having one fourth the number of planes which are requisite to
complete symmetry. -- Te*tar`to*he"dral*ly, adv.
Tetrahedrally Tetrahedrally Tet`ra*he"dral*ly, adv.
In a tetrahedral manner.
