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Cathedralic
Cathedralic Cath`e*dral"ic, a.
Cathedral. [R.]
Cubo-octahedral
Cubo-octahedral Cu`bo-oc`ta*he"dral (k?`b?-?k`t?-h?dral), a.
Presenting a combination of a cube and an octahedron.
Decahedral
Decahedral Dec`a*he"dral, a.
Having ten sides.
DiedralDiedral Di*e"dral, a.
The same as Dihedral. Dihedral
Dihedral Di*he"dral, a.
1. Of a kite or an a["e]roplane, having wings that make with
one another a dihedral angle, esp. when the angle between
the upper sides is less than 180[deg].
2. (A["e]ronautics) Of wing pairs, inclined at an upward
angle to each other.
DihedralDihedral Di*he"dral, a. [Gr. di- = di`s- twice + ? a seat,
bottom, base, fr. ? to sit. Cf. Diedral.]
Having two plane faces; as, the dihedral summit of a crystal.
Dihedral angle, the angular space contained between planes
which intersect. It is measured by the angle made by any
two lines at right angles to the two planes. Dihedral angleDihedral Di*he"dral, a. [Gr. di- = di`s- twice + ? a seat,
bottom, base, fr. ? to sit. Cf. Diedral.]
Having two plane faces; as, the dihedral summit of a crystal.
Dihedral angle, the angular space contained between planes
which intersect. It is measured by the angle made by any
two lines at right angles to the two planes. DodecahedralDodecahedral Do*dec`a*he"dral, a.
Pertaining to, or like, a dodecahedion; consisting of twelve
equal sides.
Dodecahedral cleavage. See under Cleavage. Dodecahedral cleavageDodecahedral Do*dec`a*he"dral, a.
Pertaining to, or like, a dodecahedion; consisting of twelve
equal sides.
Dodecahedral cleavage. See under Cleavage. DuodecahedralDuodecahedral Du`o*dec`a*he"dral, a., Duodecahedron
Du`o*dec`a*he"dron, n.
See Dodecahedral, and Dodecahedron. Enheahedral
Enheahedral En`he*a*he"dral, a. [Gr. ? nine + ? side.] (Geom.)
Having nine sides.
HemihedralHemihedral 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. HemihedrallyHemihedral 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. Hemiholohedral
Hemiholohedral Hem`i*hol`o*he"dral, a. [Hemi- + holohedral.]
(Crystallog.)
Presenting hemihedral forms, in which half the sectants have
the full number of planes.
Hexahedral
Hexahedral Hex`a*he"dral, a.
In the form of a hexahedron; having six sides or faces.
Holohedral
Holohedral Hol`o*he"dral, a. [Holo + Gr.? seat, base, fr. ? to
sit.] (Crystallog.)
Having all the planes required by complete symmetry, -- in
opposition to hemihedral.
Holohemihedral
Holohemihedral Hol`o*hem`i*he"dral, a. [Holo- + hemihedral.]
(Crystallog.)
Presenting hemihedral forms, in which all the sectants have
halt the whole number of planes. --Dana.
IcosahedralIcosahedral I`co*sa*he"dral, a. [See Icosahedron.] (Geom.)
Having twenty equal sides or faces. OctaedralOctaedral Oc`ta*e"dral, a.
See Octahedral. OctahedralOctahedral 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. Octahedral boraxOctahedral 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. Octahedral Dodecahedral or RhombohedralCleavage Cleav"age, n.
1. The act of cleaving or splitting.
2. (Crystallog.) The quality possessed by many crystallized
substances of splitting readily in one or more definite
directions, in which the cohesive attraction is a minimum,
affording more or less smooth surfaces; the direction of
the dividing plane; a fragment obtained by cleaving, as of
a diamond. See Parting.
3. (Geol.) Division into lamin[ae], like slate, with the
lamination not necessarily parallel to the plane of
deposition; -- usually produced by pressure.
Basal cleavage, cleavage parallel to the base of a crystal,
or to the plane of the lateral axes.
Cell cleavage (Biol.), multiplication of cells by fission.
See Segmentation.
Cubic cleavage, cleavage parallel to the faces of a cube.
Diagonal cleavage, cleavage parallel to ta diagonal plane.
Egg clavage. (Biol.) See Segmentation.
Lateral cleavage, cleavage parallel to the lateral planes.
Octahedral, Dodecahedral, or Rhombohedral, cleavage,
cleavage parallel to the faces of an octahedron,
dodecahedron, or rhombohedron.
Prismatic cleavage, cleavage parallel to a vertical prism. Octahedral iron oreOctahedral 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. Pentahedral
Pentahedral Pen`ta*he"dral, a.
Having five sides; as, a pentahedral figure.
Plagihedral
Plagihedral Pla`gi*he"dral, a. [Gr. ? oblique + ? base, seat.]
(Crystallog.)
Having an oblique spiral arrangement of planes, as levogyrate
and dextrogyrate crystals.
PolyhedralPolyhedral Pol`y*he"dral, Polyhedrical Pol`y*hed"ric*al, a.
[See Polyhedron.] (Geom.)
Having many sides, as a solid body.
Polyhedral angle, an angle bounded by three or more plane
angles having a common vertex. Polyhedral anglePolyhedral Pol`y*he"dral, Polyhedrical Pol`y*hed"ric*al, a.
[See Polyhedron.] (Geom.)
Having many sides, as a solid body.
Polyhedral angle, an angle bounded by three or more plane
angles having a common vertex. PyritohedralPyritohedral Pyr`i*to*he"dral, a. [See Pyritohedron.]
(Crystallog.)
Like pyrites in hemihedral form. RhombohedralRhombohedral Rhom`bo*he"dral, a. (Geom. & Crystallog.)
Related to the rhombohedron; presenting the form of a
rhombohedron, or a form derivable from a rhombohedron;
relating to a system of forms including the rhombohedron and
scalenohedron.
Rhombohedral iron ore (Min.) See Hematite.
Rhombohedral system (Crystallog.), a division of the
hexagonal system embracing the rhombohedron,
scalenohedron, etc. Rhombohedral iron oreRhombohedral Rhom`bo*he"dral, a. (Geom. & Crystallog.)
Related to the rhombohedron; presenting the form of a
rhombohedron, or a form derivable from a rhombohedron;
relating to a system of forms including the rhombohedron and
scalenohedron.
Rhombohedral iron ore (Min.) See Hematite.
Rhombohedral system (Crystallog.), a division of the
hexagonal system embracing the rhombohedron,
scalenohedron, etc.
Meaning of Edral from wikipedia
