Meaning : The property of flowing easily.
Example :
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
Meaning : A changeable quality.
Example :
A charming Oriental fluidity of manner.
A certain fluidness in his perception of time made him an unpredictable colleague.
Demographers try to predict social fluidity.
Synonyms : fluidness