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Meaning of effusion

ef•fu•sion

Pronunciation: (i-fy'zhun), [key]
— n.
  1. the act of effusing or pouring forth.
  2. something that is effused.
  3. an unrestrained expression, as of feelings: poetic effusions.
    1. the escape of a fluid from its natural vessels into a body cavity.
    2. the fluid that escapes.
  4. the flow of a gas through a small orifice at such density that the mean distance between the molecules is large compared with the diameter of the orifice.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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