n. The act of saturating or supplying to fullness, or the state of being saturated; complete penetration or impregnation.n. In the saturation of a liquid with a solid by solution, the quantity of the solid dissolved varies largely, in most cases, with varying temperature, the general rule being that rise of temperature is attended with increase in the quantity of the solid needed to produce saturation. In the saturation of a liquid with a dissolved gas the opposite relation prevails, as more of the gas is required to produce saturation at a low than at a high temperature, and in this case the influence of pressure is also very marked, increase of pressure being attended with increase in the quantity of gas needed to produce saturation.n. In biology, the hypothetical influence of an unborn offspring upon the body or the reproductive organs of the mother in such a way that children afterward borne by the mother to other sires resemble the first sire: a hypothesis to account for telegony. See telegony.n. In physical chemistry, the amount of a dissolved substance contained in a given volume of a solution, stated as a fraction of the amount of the dissolved substance contained in a solution saturated at the same temperature.