|chem a crystalline material in which two or more elements or compounds share a common lattice|
A uniform mixture of substances in solid form. Solid solutions often consist of two or more types of atoms or molecules that share a crystal lattice, as in certain metal alloys. Much of the steel used in construction, for example, is actually a solid solution of iron and carbon. The carbon atoms, which fit neatly within the iron's crystal lattice, add strength to its structure.