A pot still is a type of still used in distilling spirits such as whisky or brandy. Heat is applied directly to the pot containing the wash (for whisky) or wine (for brandy).
The complete distilling apparatus consists of three parts: the “cucurbit” (Arabic ḳarʿa, Greek βίκος), the still pot containing the liquid to be distilled, which is heated by a flame; the “head” or “cap” (Arabic anbiḳ, Greek ἄμβιξ) which fits over the mouth of the cucurbit to receive the vapors, with an attached downward-sloping “tube” (Greek σωλήν), leading to the “receiver”...
Dioscorides’ ambix (described in his De materia medica) is a helmet-shaped lid for gathering condensed mercury. For Athenaeus (~ 225 C.E.) it is a bottle or flask. For later chemists it denotes various parts of crude distillation devices.