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superfluid
This term is used almost exclusively within the fields of quantum physics and cryogenics. It describes a state of matter where a liquid behaves with zero internal friction, enabling paradoxical behaviors such as flowing upward against gravity or passing through pores that would block any ordinary liquid.
In a technical context, the adjective form describes the specific physical properties of the substance, while the noun form refers to the substance itself in this state. It is distinct from "superconductor," which refers to the zero-resistance flow of electricity rather than the zero-viscosity flow of matter.
Meanings
Examples
Liquid helium becomes a superfluid when cooled below the lambda point.
The superfluid climbed the walls of the beaker in a thin film.
Is a superfluid really capable of flowing without any friction?
We are studying the properties of superfluid helium in the lab today.
The substance entered a superfluid state at near absolute zero.
A superfluid can leak through pores that are far too small for normal liquids.
Look at how the superfluid flows through that microscopic crack.
The experiment demonstrated the unique behavior of a superfluid liquid.