Meaning of “baking soda” in the English Dictionary

british dictionary

"baking soda" in British English

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baking sodanoun [ U ]

uk /ˈbeɪ.kɪŋ ˌsəʊ.də/ us /ˈbeɪ.kɪŋ ˌsoʊ.də/ US UK bicarbonate of soda

a white powder used to make foods rise when they are baked

(Definition of “baking soda” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)