the act or process of absorbing or sucking in anything, or of being absorbed and made to disappear; as, the absorption of bodies in a whirlpool, the absorption of a smaller tribe into a larger.-an imbibing or reception by molecular or chemical action; as, the absorption of light, heat, electricity, etc.-in living organisms, the process by which the materials of growth and nutrition are absorbed and conveyed to the tissues and organs.-entire engrossment or occupation of the mind; as, absorption in some employment.