\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.