Source : Webster's Revised Unabridged Dictionary (1913)

Fluinity \Flu*in"i*ty\, n. [Cf. F. fluidit['e].]
   The quality of being fluid or capable of flowing; a liquid,
   a["e]riform. or gaseous state; -- opposed to solidity.

         It was this want of organization, this looseness and
         fluidity of the new movement, that made it penetrate
         through every class of society.          --J. R. Green.