SODA n. 2 definitions
Popularly, sodium carbonate or bicarbonate. Caustic soda, sodium hydroxide. -- Cooking soda, sodium bicarbonate. [Colloq.] -- Sal soda. See Sodium carbonate, under Sodium. -- Soda alum (Min.), a mineral consisting of the hydrous sulphate of alumina and soda. -- Soda ash, crude sodium carbonate; -- so called because…