|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|
|2.||being or relating to a superfluid|
|superfluid (s'pər-fl'ĭd) Pronunciation Key
A fluid, such as liquid helium, that flows with little or no friction at temperatures close to absolute zero.