n. [ L. obturare to stop up: cf. F. obturation. ] The act of stopping up, or closing, an opening. “Deaf by an outward obturation.” Bp. Hall. [ 1913 Webster ]
n. [ L. saturatio: cf. F. saturation. ]
☞ The degree of saturation of a color is its relative purity, or freedom from admixture with white. [ 1913 Webster ]