'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]