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superfluid

[soo-per-floo-id] /ˌsu pərˈflu ɪd/
noun
1.
a fluid that exhibits frictionless flow, very high heat conductivity, and other unusual physical properties, helium below 2.186 K being the only known example.
adjective
2.
of or pertaining to a superfluid.
Origin
1940-1945
1940-45; super- + fluid
Related forms
superfluidity, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for superfluidest

superfluid

/ˌsuːpəˈfluːɪd/
noun
1.
(physics) a fluid in a state characterized by a very low viscosity, high thermal conductivity, high capillarity, etc. The only known example is that of liquid helium at temperatures close to absolute zero
adjective
2.
being or relating to a superfluid
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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superfluidest in Science
superfluid
  (s'pər-fl'ĭd)   
A fluid, such as liquid helium, that flows with little or no friction at temperatures close to absolute zero.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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