Racking is the term brewers use to describe transferring wort or beer from one vessel to another. Racking is typically done through the use of a siphon. Thos who have fermenters with a tap can also use hosing.
There are several common pieces of racking equipment: the racking cane and the auto-siphon.
One very important issue to note is to avoid splashing the beer while racking. Splashing the beer adds cardboard-like flavours to the beer.