Noun | 1. | suffusion - the process of permeating or infusing something with a substance ammonification - impregnation with ammonia or a compound of ammonia carbonation - saturation with carbon dioxide (as soda water) diffusion - (physics) the process in which there is movement of a substance from an area of high concentration of that substance to an area of lower concentration saturation, impregnation - the process of totally saturating something with a substance; "the impregnation of wood with preservative"; "the saturation of cotton with ether" |