Definition of "baking soda" []

• A white crystalline compound, NaHCO3, with a slightly alkaline taste, used in making effervescent salts and beverages, artificial mineral water, pharmaceuticals, and fire extinguishers. Also called bicarbonate of soda, sodium bicarbonate. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "And your choice of toothpaste matters toomy favorite is Arm & Hammers baking soda and peroxide toothpaste."
• "To make a gentle exfoliator, make a paste of baking soda and water and rub the mixture all over your skin."
• "Even if a food does not taste terribly salty (bagels can have over 400 milligrams of sodium), the presence of ingredients like monosodium glutamate (MSG), baking soda and baking powder, and nitrites should tip you off—you will be surprised at the sodium content of many foods if you read the nutrition labels."