·noun Impure soda obtained from the ashes of any seashore plant, or kelp.
II. Barilla ·noun A name given to several species of Salsola from which soda is made, by burning the barilla in heaps and lixiviating the ashes.
III. Barilla ·noun The alkali produced from the plant, being an impure carbonate of soda, used for making soap, glass, ·etc., and for bleaching purposes.