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

We have taken what we already know about superfluid helium and quantum technologies and turned that into an educated design, with the parameters and specifications needed to build one.

From Science Daily ● Oct. 1, 2026

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

From Science Daily ● Sep. 18, 2026

By studying superfluid helium, a substance that displays unusual quantum behavior, scientists are uncovering patterns that could improve climate modeling, storm prediction, and aviation safety.

From Science Daily ● Jul. 5, 2026

Instead of freezing, it transforms from a normal gas into a superfluid, a rare state of matter that flows without any resistance and displays strange behaviors, including creeping up the sides of containers.

From Science Daily ● Feb. 5, 2026

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