Obs. rare. [mod.L. soda, ad. G. sod (sode), MLG. sode, Du. zode, Fris. soad(e, related to SEETHE v.] A form of indigestion; heart-burn.
Never actually adopted in English use.
1693. trans. Blancards Phys. Dict. (ed. 2), Soda, the same with Ardor ventriculi [= Heart-burning].
1753. Chambers Cycl., Suppl., Soda, an uneasy and troublesome sensation of heat about the orifice of the stomach.