Dictionary
superfluid
noun su·per·flu·id \ˌsü-pər-ˈflü-əd\
Definition of SUPERFLUID
: 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
— su·per·flu·id·i·ty \-flü-ˈi-də-tē\ noun
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First Known Use of SUPERFLUID
1938
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