Crystallization

Noun

 * 1)  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.
 * 3)  The formation of a solid from a solution, melt, vapour or from a different solid phase
 * 4)  The process or the result of becoming more definite or precise.