sodium bicarbonate
noun/ˌsəʊdiəm baɪˈkɑːbənət/
/ˌsəʊdiəm baɪˈkɑːrbənət/
(also bicarbonate of soda, baking soda)
(also informal bicarb)
[uncountable] (symbol NaHCO3)
- a chemical in the form of a white powder that dissolves in water and is used in baking to make cakes, etc. rise and become light, and in making fizzy drinks and some medicines
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sodium bicarbonate