noun
superfluidity
Physics term for the frictionless flow of a fluid at very low temperatures.
液体ヘリウムは極低温で超流動を示す。
Liquid helium exhibits superfluidity at extremely low temperatures.
Superconductivity (electrical resistance zero), while 超流動 refers to frictionless flow of a fluid.
Compound of 超 (super-) and 流動 (flow). A calque of English 'superfluidity'.