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potassium bicarbonate

American  
[puh-tas-ee-uhm bahy-kahr-buh-nit, -neyt] / pəˈtæs i əm baɪˈkɑr bə nɪt, -ˌneɪt /

noun

Chemistry, Pharmacology.

  1. a white, crystalline, slightly alkaline, salty-tasting, water-soluble powder, KHCO 3 , produced by the passage of carbon dioxide through an aqueous potassium carbonate solution: used in baking as a leavening agent and in medicine as an antacid.

Etymology

Origin of potassium bicarbonate

First recorded in 1870–75

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.