ˌsēˌmenˈtāshən noun
( -s )
1. : the act or process of cementing : the state of being cemented
cementation of sand into stone
2.
a. : a process that consists in surrounding a solid body with the powder of other substances and heating the whole to a degree not sufficient to cause fusion, the physical properties of the body being changed by chemical combination with the powder
iron becomes steel by cementation with charcoal
green glass becomes porcelain by cementation with sand
b. : the process of obtaining a metal from a solution of one of its compounds by precipitation with another metal (as the obtaining of copper from a solution of copper sulfate by means of metallic iron)