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[bahy-kahr-buh-nit, -neyt] /baɪˈkɑr bə nɪt, -ˌneɪt/
noun, Chemistry
a salt of carbonic acid, containing the HCO 3 −1 group; an acid carbonate, as sodium bicarbonate, NaHCO 3 .
Origin of bicarbonate
1810-20; bi-1 + carbonate Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for bicarbonate
  • Ocean acidification has further chemical implications: more hydrogen ions mean more bicarbonate ions, and fewer carbonate ions.
  • The importance of using sodium bicarbonate to normalize body pH should not be overlooked either.
  • Metabolic alkalosis is caused by too much bicarbonate in the blood.
  • They may also stimulate the defensive systems in the stomach by increasing bicarbonate and mucous secretion.
  • Smoking increases acid secretion, reduces prostaglandin and bicarbonate production, and decreases mucosal blood flow.
  • bicarbonate serves a crucial biochemical role in the physiological ph buffering system.
  • Ammonium bicarbonate is used in digestive biscuit manufacture.
British Dictionary definitions for bicarbonate


/baɪˈkɑːbənɪt; -ˌneɪt/
a salt of carbonic acid containing the ion HCO3; an acid carbonate
(modifier) consisting of, containing, or concerned with the ion HCO3: a bicarbonate compound Systematic name hydrogen carbonate
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for bicarbonate

1819, from bi- + carbonate.

Online Etymology Dictionary, © 2010 Douglas Harper
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bicarbonate in Medicine

bicarbonate bi·car·bon·ate (bī-kär'bə-nāt', -nĭt)
The radical group HCO3 or a compound, such as sodium bicarbonate, containing it.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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bicarbonate in Science
The group HCO3 or a compound containing it, such as sodium bicarbonate. When heated, bicarbonates give off carbon dioxide.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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