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effusion

[ ih-fyoo-zhuhn ]
/ ɪˈfyu ʒən /
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noun
the act of effusing or pouring forth.
something that is effused.
an unrestrained expression, as of feelings: poetic effusions.
Pathology.
  1. the escape of a fluid from its natural vessels into a body cavity.
  2. the fluid that escapes.
Physics. 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.
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Origin of effusion

1350–1400; Middle English (<Anglo-French ) <Latin effūsiōn- (stem of effūsiō), equivalent to ef-ef- + fūsion-fusion

OTHER WORDS FROM effusion

non·ef·fu·sion, noun

Words nearby effusion

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use effusion in a sentence

British Dictionary definitions for effusion

effusion
/ (ɪˈfjuːʒən) /

noun
an unrestrained outpouring in speech or words
the act or process of being poured out
something that is poured out
the flow of a gas through a small aperture under pressure, esp when the density is such that the mean distance between molecules is large compared to the diameter of the aperture
med
  1. the escape of blood or other fluid into a body cavity or tissue
  2. the fluid that has escaped
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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