The property of flowing easily:
— Adding lead makes the alloy easier to cast because the melting point is reduced and the fluidity is increased.
— They believe that fluidity increases as the water gets warmer.

synonyms: fluidness, liquidity, liquidness, runniness.

Roget 333: fluidity, liquidity; liquidness etc. adj.^†; gaseity etc. 334^†.    fluid, inelastic fluid; liquid, liquor; lymph, humor, juice, sap, serum, blood, serosity^†, gravy, rheum, ichor^†, sanies^†; chyle [Med.].    solubility, solubleness^†.    [Science of liquids at rest] hydrology, hydrostatics, hydrodynamics.    ... show more

Polish: ciekłość, płynność

A changeable quality:
— A charming Oriental fluidity of manner.
— Demographers try to predict social fluidity.

synonym: fluidness.