Meaning & use
hydrogen carbonate
A chemical ion containing hydrogen, carbon, and oxygen (HCO3-), commonly known as bicarbonate.
See it in a sentence
Sodium hydrogen carbonate, also called baking soda, is used in cooking and cleaning.
The blood's hydrogen carbonate level helps regulate its acid-base balance.
A note on using this word
Commonly called 'bicarbonate' in everyday and medical contexts, though 'hydrogen carbonate' is the systematic chemical name.
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