·noun The liquid escaping or exuded.
II. Effusion ·noun That which is poured out, literally or figuratively.
III. Effusion ·noun The act of pouring out; as, effusion of water, of blood, of grace, of words, and the like.
IV. Effusion ·noun 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.