fluidity

[floo-id-i-tee]
noun
1.
the quality or state of being fluid.
2.
Physics.
a.
the ability of a substance to flow.
b.
a measure of this ability, the reciprocal of the coefficient of viscosity. Compare rhe.

Origin:
1595–1605; fluid + -ity

nonfluidity, noun
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World English Dictionary
fluidity (fluːˈɪdɪtɪ)
 
n
1.  the state of being fluid
2.  physics the reciprocal of viscosity

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

fluidity
c.1600, from Fr. fluidité, from fluide (see fluid)
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
It lacks the quick fluidity and instant comprehension of your native tongue.
Water is not the only liquid to provide the fluidity that increases the
  likelihood of life emerging.
Even if this method does not pan out exactly, this fluidity makes intuitive
  sense.
The fluidity of their dress may actually contribute to why they make so many
  people uneasy.
Synonyms
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