dephlegmator

Century Dictionary and Cyclopedia

1. n. A condensing apparatus for stills, consisting sometimes of broad sheets of tinned copper soldered together so as to leave narrow spaces between them, the liquid flowing successively from one space to the next, and sometimes of a worm or continuous pipe in large coils.

Wiktionary

1. n. chemistry, archaic An instrument or apparatus in which water is separated by evaporation or distillation; the part of a distilling apparatus in which the separation of the vapours is effected.

GNU Webster's 1913

1. n. An instrument or apparatus in which water is separated by evaporation or distillation; the part of a distilling apparatus in which the separation of the vapors is effected.