'Basal cleavage' definitions:
Definition of 'Basal cleavage'
From: GCIDE
- Basal \Ba"sal\, a. Relating to, or forming, the base. [1913 Webster]
- Basal cleavage. See under Cleavage.
- Basal plane (Crystallog.), a plane parallel to the lateral or horizontal axis. [1913 Webster]
Definition of 'Basal cleavage'
From: 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]