01 n. The act of cleaving or splitting.
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1.
The act of cleaving or splitting.
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2.
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.(Crystallog.) See: Parting
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3.
Division into laminæ, like slate, with the lamination not necessarily parallel to the plane of deposition; -- usually produced by pressure.(Geol.)
Phrases & compounds
Basal cleavage —
cleavage parallel to the base of a crystal, or to the plane of the lateral axes.
Cell cleavage —
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 —
See Segmentation.
Lateral cleavage —
cleavage parallel to the lateral planes.
Octahedral cleavage —
cleavage parallel to the faces of an octahedron, dodecahedron, or rhombohedron.
Prismatic cleavage —
cleavage parallel to a vertical prism.