rectificator

Century Dictionary and Cyclopedia

1. n. The part or parts of a modern still for alcoholic liquors in which rectification takes place. See rectification .

Wiktionary

1. n. chemistry That which rectifies or refines; especially, a part of a distilling apparatus in which the more volatile portions are separated from the less volatile by evaporation and condensation; a rectifier.

GNU Webster's 1913

1. n. (Chem.) That which rectifies or refines; esp., a part of a distilling apparatus in which the more volatile portions are separated from the less volatile by the process of evaporation and condensation; a rectifier.