Sodium bicarbonate Meaning, Definition & Usage

  1. noun a white soluble compound (NaHCO3) used in effervescent drinks and in baking powders and as an antacid
    baking soda; saleratus; sodium hydrogen carbonate; bicarbonate of soda.

WordNet

Definitions
  1. a white crystalline substance, HNaCO3, with a slight alkaline taste resembling that of sodium carbonate. It is found in many mineral springs and also produced artificially,. It is used in cookery, in baking powders, and as a source of carbonic acid gas (carbon dioxide) for soda water. Called also cooking soda, saleratus, and technically, acid sodium carbonate, primary sodium carbonate, sodium dicarbonate, etc.

Webster 1913