/fluˈɪdəti/
flu·id·ity
BrE /fluˈɪdəti/
NAmE /fluˈɪdəti/
[U]
(formal)
the quality of being smooth and elegant
She danced with great fluidity of movement.
(formal)
the quality of being likely to change
the fluidity of human behaviour
social fluidity
(specialist)
the quality of being able to flow freely, as gases and liquids do