baking soda
noun
- sodium bicarbonate; a white crystalline compound, NaHCO₃, with a slightly alkaline taste, used in making effervescent salts and beverages, artificial mineral water, pharmaceuticals, and fire extinguishers
Wiktionary
noun
Etymology: From its use in baking.
- Sodium bicarbonate.
“Holonyms: baking powder, soda bread”