- The act of pouring out; as, effusion of water, of blood,
of grace, of words, and the like. - That which is poured out, literally or figuratively. - The escape of a fluid out of its natural vessel, either
by rupture of the vessel, or by exudation through its walls. It may
pass into the substance of an organ, or issue upon a free surface. - The liquid escaping or exuded.