ACHERUSIA PALUS, a lake between Cumæ and the promontory Misenum, now Il Lago della Collucia. (Cluverius.) Some confound it with the Lacus Lucrinus, and others with the Lacus Avernus; but Strabo and Pliny distinguish them.—Also a lake of Epirus, through which the Acheron runs.—There is also a cave of the same name, through which Hercules is fabled to have descended to hell to drag forth Cerberus.
ACHIAR is a Malayan word, which signifies all sorts of fruits and roots pickled with vinegar and spice. The Dutch import from Batavia all sorts of achiar, but particularly that of BAMBOO, a kind of cane, extremely thick, which grows in the East Indies. It is preserved there, whilst it is still green, with very strong vinegar and spice; and is called bamboo achiar. The name changes according to the fruit with which the achiar is made.
ACHICOLUM is used to express the fornix, tholus, or sudatorium of the ancient baths; which was a hot room where they used to sweat. It is also called architholus.