adj
(chemistry, of a molecule) Having the shape of such a prism
n
The shorter of the diagonals in a rhombic prism.
n
An allotrope of carbon having a hollow molecule consisting of 60 atoms arranged in 12 pentagonal and 20 hexagonal faces to form a truncated icosahedron; the smallest of the fullerenes.
n
(crystallography) That diagonal or lateral axis in a monoclinic crystal which makes an oblique angle with the vertical axis.
adj
(mathematics) Of or pertaining to a conchoid; that may be defined as a conchoid.
adj
(crystallography) tetragonal
adj
(crystallography) Of a certain symmetry class with 24 congruent irregular quadrilateral faces.
adj
(mineralogy) Of or pertaining to a crystal form bounded by eight scalene triangles arranged in pairs, constituting a tetragonal scalenohedron.
n
(crystallography) A prism formed by planes parallel to a lateral axis which meet above in a horizontal edge, like the roof of a house; also, one of the planes of such a form.
adj
Relating to a garnetohedron
n
(crystallography) A solid hemihedrally derived.
n
a three-dimensional geometric shape similar to a helix, but with one or more perversions causing changes in chirality along its run
adj
(crystallography) Presenting hemihedral forms in which half the sectants have the full number of planes.
adj
(crystallography) Having three equal axes which cross at 60° angles, and an unequal axis which crosses the others at 90° angle.
adj
(botany) hexagonal in section
adv
As in hexatic liquid crystals
n
(biology, biochemistry) Any small biological structure that has hexagonal symmetry.
adj
(of a crystal) Having as many plane faces as needed for the highest degree of symmetry in its system
adv
In an icosahedral way.
adj
(mathematics, of precessional motion) Describing the same cone.
adj
Having an equal or nearly equal diameter in all directions
adj
Of, or being a geometric system of three equal axes lying at right angles to each other (especially in crystallography).
n
A prism of an orthorhombic crystal between the macropinacoid and the unit prism; the corresponding pyramids are called macropyramids.
adj
Describing a form of a crystal that has half (or quarter, eighth etc) of the faces of the normal form
adj
(mathematics, of a tessellation) Having exactly one prototile.
adj
Synonym of enneahedral
n
(physics) A color singlet bound state of color-octet scalars.
adj
(of a crystal) Having hemimorphic trigonal pyramidal symmetry
adj
(of a crystal) Having orthorhombic hexagonal symmetry
adj
Relating to a parallelohedron.
n
(crystallography) An asymmetric triclinic crystal form that only has one face.
adj
Composed of five cylinders
n
five-part radial symmetry
adj
Of or relating to the permutohedron.
n
Alternative form of pinacoid [(crystallography) The face of a crystal parallel to two of the axes.]
adj
Having the external appearance of being rhombohedral
adj
(crystallography) Tetragonal.
n
(geometry) Alternative form of pyramidoid [(geometry) A solid resembling a pyramid.]
adj
(mathematics) Having the shape of a pyritohedron.
adj
(crystallography) Of or pertaining to a scalenohedron.
adj
(mathematics) Of or pertaining to a spectrahedron.
adj
(crystallography) isometric and tetragonal, but having one fourth of the number of planes required for complete symmetry
n
(crystallography) The property of being tetartohedral.
adj
radiating outward in four directions
adj
(crystallography) orthorhombic
n
A prism with a shallow angle between its input and output surfaces.
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