superfluid
noun
su·per·flu·id ˌsü-pər-ˈflü-əd 
: an unusual state of matter noted only in liquid helium cooled to near absolute zero and characterized by apparently frictionless flow (as through fine holes)
superfluid adjective
superfluidity
ˌsü-pər-flü-ˈi-də-tē
noun 
Example Sentences
Recent Examples on the Web But because of the strange physics of neutron stars, the protons and electrons become a superfluid and can maintain their motion without any electrical resistance. 
Paul Sutter, Ars Technica, 17 June 2022 In the case of helium, however, sufficient cooling will create a superfluid, at which point its atoms will flow without losing energy to viscosity. John Timmer, Ars Technica, 16 Mar. 2022 At temperatures above the point at which liquid helium becomes a superfluid, the transition created a broad peak instead of a sharp one. John Timmer, Ars Technica, 16 Mar. 2022 Very intelligent aliens can achieve quantum computation by exciting the various energy and spin states in this fermion-gravitonic superfluid. Stephon Alexander, Wired, 31 Aug. 2021 In conventional superconductors, where clusters of atoms pair free electrons, just 1 in 100,000 electrons join the superconducting superfluid. Charlie Wood, Quanta Magazine, 16 Mar. 2021 Their work explains the behavior of superconductors and superfluids by connecting these systems to topology, the mathematical study of spatial properties including surfaces. Quanta Magazine, 4 Oct. 2016 But to isolate it in superfluid helium is a big job, one that Mills’s lab will do by tuning a special antimatter beam. Caroline Delbert, Popular Mechanics, 9 Dec. 2019 Related Stories The Bose-Einstein condensate phase is also a superfluid, first made in a lab in 1995. Caroline Delbert, Popular Mechanics, 9 Dec. 2019 See More
Paul Sutter, Ars Technica, 17 June 2022 In the case of helium, however, sufficient cooling will create a superfluid, at which point its atoms will flow without losing energy to viscosity. John Timmer, Ars Technica, 16 Mar. 2022 At temperatures above the point at which liquid helium becomes a superfluid, the transition created a broad peak instead of a sharp one. John Timmer, Ars Technica, 16 Mar. 2022 Very intelligent aliens can achieve quantum computation by exciting the various energy and spin states in this fermion-gravitonic superfluid. Stephon Alexander, Wired, 31 Aug. 2021 In conventional superconductors, where clusters of atoms pair free electrons, just 1 in 100,000 electrons join the superconducting superfluid. Charlie Wood, Quanta Magazine, 16 Mar. 2021 Their work explains the behavior of superconductors and superfluids by connecting these systems to topology, the mathematical study of spatial properties including surfaces. Quanta Magazine, 4 Oct. 2016 But to isolate it in superfluid helium is a big job, one that Mills’s lab will do by tuning a special antimatter beam. Caroline Delbert, Popular Mechanics, 9 Dec. 2019 Related Stories The Bose-Einstein condensate phase is also a superfluid, first made in a lab in 1995. Caroline Delbert, Popular Mechanics, 9 Dec. 2019 See More Word History
First Known Use
1938, in the meaning defined above