superfluid

American  

[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.

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adjective

1. of or relating to a superfluid.

superfluid British  

/ 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

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adjective

1. being or relating to a superfluid

superfluid Scientific  

/ so̅o̅′pər-flo̅o̅′ĭd /

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

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Other Word Forms

• superfluidity
  noun

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Etymology

Origin of superfluid

First recorded in 1940–45; super- + fluid

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Example Sentences

See Examples For:

superfluid

In that setup, a superfluid based qubit could store quantum information while other hardware carries out calculations.

From Science Daily ● Oct. 1, 2026

The concept uses superfluid helium, a form of helium with unusual quantum properties, to create a qubit that may be less sensitive to some of the disturbances that affect today's leading quantum computers.

From Science Daily ● Oct. 1, 2026

"In order to achieve this, we used superfluid helium that had been cooled close to absolute zero at minus 273 degrees Celsius," explains Jesse Zhang, lead author of the study.

From Science Daily ● Sep. 18, 2026

The process begins by directing antimuons from PSI's accelerator into a thin layer of superfluid helium.

From Science Daily ● Sep. 18, 2026

"For the first time, we've seen a superfluid undergo a phase transition to become what appears to be a supersolid," said Dean.

From Science Daily ● Feb. 5, 2026

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