Still which has a column as opposed to a simple pot still. Column stills produce a higher proof spirit in a single run than pot stills, which generally require multiple distillations to produce a palatable spirit.
Column stills are generally referred to by the method of creating reflux in the the column, vapor management (VM), cooling management (CM) or liquid management (LM). Plated stills, like a Magic Flute are often included in discussions of column stills, although the plates are a method of fractioning rather than a reflux management. Most flute designs are considered CM stills.