'Diagonal cleavage' definitions:

Definition of 'Diagonal cleavage'

From: GCIDE
  • Diagonal \Di*ag"o*nal\, a. [L. diagonalis, fr. Gr. ? from to angle; dia` through + ? an angle; perh. akin to E. knee: cf. F. diagonal.] (Geom.) Joining two not adjacent angles of a quadrilateral or multilateral figure; running across from corner to corner; crossing at an angle with one of the sides. [1913 Webster]
  • Diagonal bond (Masonry), herringbone work. See Herringbone, a.
  • Diagonal built (Shipbuilding), built by forming the outer skin of two layers of planking, making angles of about 45[deg] with the keel, in opposite directions.
  • Diagonal cleavage. See under Cleavage.
  • Diagonal molding (Arch.), a chevron or zigzag molding.
  • Diagonal rib. (Arch.) See Cross-springer.
  • Diagonal scale, a scale which consists of a set of parallel lines, with other lines crossing them obliquely, so that their intersections furnish smaller subdivisions of the unit of measure than could be conveniently marked on a plain scale.
  • Diagonal stratification. (Geol.) Same as Cross bedding, under Cross, a. [1913 Webster]

Definition of 'Diagonal 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]