fluid
/ˈflü-əd/
adjective
having particles that easily move and change their relative position without a separation of the mass and that easily yield to pressure : capable of flowing
subject to change or movement
characterized by or employing a smooth easy style
a long screw that forces the fluid chocolate through fine openings
boundaries became fluid
noun
a substance (such as a liquid or gas) tending to flow or conform to the outline of its container
noun
a unit of liquid capacity equal to 1/8 fluid ounce