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Definition of effusion:

  1. That which is poured out, literally or figuratively.
  2. The act of pouring out; as, effusion of water, of blood, of grace, of words, and the like.
  3. 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.
  4. The liquid escaping or exuded.


flare-up, gush, diffusion, detonation, outpouring, wordiness, flow, ebullition, burst, outburst, volubility, enlargement, flush, blowup, explosion, stream, emanation, outbreak, tumultuous disturbance, magnification.

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