effusion

[ ih-fyoo-zhuh n ]
/ ɪˈfyu ʒən /
SEE SYNONYMS FOR effusion ON THESAURUS.COM

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.

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

effrontery, effulgence, effulgent, effuse, effusiometer, effusion, effusive, effy, efik, efis, efl

Words related to effusion

diffusion, effluvium, stream, emanation, verbosity, wordiness, emission, efflux, outflow, gush, address, discharge, ooze, shedding, exudate, effluence, pouring, gushing

Example sentences from the Web for effusion

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

Medical definitions for effusion

effusion
[ ĭ-fyōō′zhən ]

n.

The escape of fluid from the blood vessels or lymphatics into the tissues or a cavity.
The fluid so escaped.