Alembic

An Alembic (most likely from the Arabic al-inbīq) was, historically, an apparatus used by medieval chemists in the distilling process. It consisted of a gourd-shaped vessel containing the substance to be distilled, capped by the alembic proper which was a lid that conveyed the vaporous products to a separate receiver to be condensed. The retort and various stills have since replaced the alembic.