n. Digestion.n. The process by which morbid matter was formerly supposed to be separated from the blood or humors, or otherwise changed and prepared to be thrown off; maturation.n. A ripening or maturing; maturity.n. The act of preparing and combining the materials of anything; hence, the devising or planning of anything; the act of contriving or getting up: as, the concoction of a medical prescription, or of a scheme or plot.n. That which is concocted; specifically, a mixture or compound of various ingredients: as, a concoction of whisky, milk, and sugar.