Separation of fermented wines from the residual solids is termed as

The separation of fermented wines from the residual solids is termed Racking.
The term racking means moving wine from one vessel to another. This can be from tank to barrel, barrel to barrel and barrel to the tank. Racking can be done to serve several different purposes.
It is done for filtering or fining, which is the process of moving wine or beer from one container to another using gravity rather than a pump, which can be disruptive to the beverage.