effuse

[v. ih-fyooz; adj. ih-fyoos]
verb (used with object), effused, effusing.
1.
to pour out or forth; shed; disseminate: The town effuses warmth and hospitality.
verb (used without object), effused, effusing.
2.
to exude; flow out.
3.
Physics. (of a gas) to flow through a very small orifice.
adjective
4.
scattered; profuse.
5.
Botany. spread out loosely.
6.
(of certain shells) having the lips separated by a gap or groove.

Origin:
1350–1400; Middle English < Latin effūs(us) (past participle of effundere) poured out, equivalent to ef- ef- + fūsus poured (see fuse2)

uneffused, adjective
uneffusing, adjective
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
effuse
 
vb
1.  to pour or flow out
2.  to spread out; diffuse
3.  (intr) to talk profusely, esp in an excited manner
4.  to cause (a gas) to flow or (of a gas) to flow under pressure
 
adj
5.  botany (esp of an inflorescence) spreading out loosely
 
[C16: from Latin effūsus poured out, from effundere to shed, from fundere to pour]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

effuse
1520s, from L. effusus, pp. of effundere (see effusion).
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
Streams of molten rock that either effuse quietly from a vent or are fed by lava fountains.
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