•trivial name for the salt sodium bicarbonate (NaHCO₃), one of the constituents of baking soda · trivial name for bicarbonate, HCO₃⁻, one of the ions that are formed when carbon dioxide is dissolved in water
köken: Internationalism; compare German Soda, Italian soda, Spanish soda, ultimately from Medieval Latin soda, from Arabic سُوَيْدَاء (suwaydāʔ). Doublet of sód.
Compound of bi- (“bi-”) + karbonat (“carbonate”), derived from Latin carbo (“coal”). Attested since 1820. Cognate with English bicarbonate, French bicarbonate and German bikarbonat.