| slovo | definícia |
rhombohedral
(encz) | rhombohedral, adj: |
Rhombohedral
(gcide) | Rhombohedral \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.
[1913 Webster]
Rhombohedral iron ore (Min.) See Hematite.
Rhombohedral system (Crystallog.), a division of the
hexagonal system embracing the rhombohedron,
scalenohedron, etc.
[1913 Webster] |
rhombohedral
(wn) | rhombohedral
adj 1: having threefold symmetry [syn: rhombohedral,
trigonal] |
| | podobné slovo | definícia |
Rhombohedral
(gcide) | Rhombohedral \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.
[1913 Webster]
Rhombohedral iron ore (Min.) See Hematite.
Rhombohedral system (Crystallog.), a division of the
hexagonal system embracing the rhombohedron,
scalenohedron, etc.
[1913 Webster] |
Rhombohedral cleavage
(gcide) | Cleavage \Cleav"age\, n.
1. The act of cleaving or splitting.
[1913 Webster]
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.
[1913 Webster]
3. (Geol.) Division into lamin[ae], like slate, with the
lamination not necessarily parallel to the plane of
deposition; -- usually produced by pressure.
[1913 Webster]
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 cleavage, Dodecahedral cleavage, or
Rhombohedral cleavage, cleavage parallel to the faces of an
octahedron, dodecahedron, or rhombohedron.
Prismatic cleavage, cleavage parallel to a vertical prism.
[1913 Webster] |
rhombohedral iron ore
(gcide) | Hematite \Hem"a*tite\, n. [L. haematites, Gr. ? bloodlike, fr.
a"i^ma, a"i`matos, blood.] (Min.)
An important ore of iron, the sesquioxide, so called because
of the red color of the powder. It occurs in splendent
rhombohedral crystals, and in massive and earthy forms; --
the last called red ocher. Called also specular iron,
oligist iron, rhombohedral iron ore, and bloodstone.
See Brown hematite, under Brown.
[1913 Webster]Rhombohedral \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.
[1913 Webster]
Rhombohedral iron ore (Min.) See Hematite.
Rhombohedral system (Crystallog.), a division of the
hexagonal system embracing the rhombohedron,
scalenohedron, etc.
[1913 Webster] |
Rhombohedral iron ore
(gcide) | Hematite \Hem"a*tite\, n. [L. haematites, Gr. ? bloodlike, fr.
a"i^ma, a"i`matos, blood.] (Min.)
An important ore of iron, the sesquioxide, so called because
of the red color of the powder. It occurs in splendent
rhombohedral crystals, and in massive and earthy forms; --
the last called red ocher. Called also specular iron,
oligist iron, rhombohedral iron ore, and bloodstone.
See Brown hematite, under Brown.
[1913 Webster]Rhombohedral \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.
[1913 Webster]
Rhombohedral iron ore (Min.) See Hematite.
Rhombohedral system (Crystallog.), a division of the
hexagonal system embracing the rhombohedron,
scalenohedron, etc.
[1913 Webster] |
Rhombohedral system
(gcide) | Rhombohedral \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.
[1913 Webster]
Rhombohedral iron ore (Min.) See Hematite.
Rhombohedral system (Crystallog.), a division of the
hexagonal system embracing the rhombohedron,
scalenohedron, etc.
[1913 Webster] |
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