superfluid

[ soo-per-floo-id ]

/ ˌsu pərˈflu ɪd /

Physics.

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noun

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

of or relating to a superfluid.

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Origin of superfluid

First recorded in 1940–45; super- + fluid

OTHER WORDS FROM superfluid

su·per·flu·id·i·ty, noun

Words nearby superfluid

superficial temporal vein, superficial transverse muscle of perineum, superficies, superfine, superfix, superfluid, superfluidity, superfluity, superfluous, superfood, superfund

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use superfluid in a sentence

Scientists have caught glimpses of superfluids by cooling helium to temperatures barely above absolute zero.
We finally have a working supersolid. Here’s why that matters.|Claire Maldarelli|August 23, 2021|Popular-Science
A quirk of quantum mechanics, a superfluid is a substance that acts like a fluid with zero viscosity.
We finally have a working supersolid. Here’s why that matters.|Claire Maldarelli|August 23, 2021|Popular-Science
In conventional superconductors, where clusters of atoms pair free electrons, just 1 in 100,000 electrons join the superconducting superfluid.
A New Twist Reveals Superconductivity’s Secrets|Charlie Wood|March 16, 2021|Quanta Magazine

British Dictionary definitions for superfluid

superfluid

/ (ˌsuːpəˈfluːɪd) /

noun

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

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

Scientific definitions for superfluid

superfluid

[ sōō′pər-flōō′ĭd ]

A fluid, such as liquid helium, that flows with little or no friction at temperatures close to absolute zero.