noun.
The quality of being fluid, or capable of flowing; that quality of a body which renders it incapable of resisting tangential stresses. See fluid, n.
noun.
Fluency; flowing character or style: opposed to rigidity or stiffness.
the GNU version of the Collaborative International Dictionary of English
noun.
The quality of being fluid or capable of flowing; a liquid, aëriform, or gaseous state; -- opposed to solidity.