n. [ L. saturatio: cf. F. saturation. ] 1. The act of saturating, or the state of being saturating; complete penetration or impregnation. [ 1913 Webster ]
2. (Chem.) The act, process, or result of saturating a substance, or of combining it to its fullest extent. [ 1913 Webster ]
3. (Optics) Freedom from mixture or dilution with white; purity; -- said of colors. [ 1913 Webster ]
☞ The degree of saturation of a color is its relative purity, or freedom from admixture with white. [ 1913 Webster ]