\Crys`tal*li*za"tion\
(kr[i^]s`tal*l[i^]*z[=a]"sh[u^]n), n. [Cf. F.
cristallization.]
1. (Chem. & Min.) The act or process by which a substance in
   solidifying assumes the form and structure of a crystal,
   or becomes crystallized.
2. The body formed by crystallizing; as, silver on
   precipitation forms arborescent crystallizations.
Note: The systems of crystallization are the several classes
      to which the forms are mathematically referable. They
      are most simply described according to the relative
      lengths and inclinations of certain assumed lines
      called axes; but the real distinction is the degree of
      symmetry characterizing them. 1. {The Isometric, or
      Monometric, system} has the axes all equal, as in the
      cube, octahedron, etc. 2. {The Tetragonal, or Dimetric,
      system} has a varying vertical axis, while the lateral
      are equal, as in the right square prism. 3. {The
      Orthorhombic, or Trimetric, system} has the three axes
      unequal, as in the rectangular and rhombic prism. In
      this system, the lateral axes are called, respectively,
      macrodiagonal and brachydiagonal. -- The preceding are
      erect forms, the axes intersecting at right angles. The
      following are oblique. 4. {The Monoclinic system},
      having one of the intersections oblique, as in the
      oblique rhombic prism. In this system, the lateral axes
      are called respectively, clinodiagonal and
      orthodiagonal. 5. {The Triclinic system}, having all
      the three intersections oblique, as in the oblique
      rhomboidal prism. There is also: 6. {The Hexagonal
      system} (one division of which is called Rhombohedral),
      in which there are three equal lateral axes, and a
      vertical axis of variable length, as in the hexagonal
      prism and the rhombohedron.
Note: The Diclinic system, sometimes recognized, with two
      oblique intersections, is only a variety of the
      Triclinic.